diff --git a/GUI/index.html b/GUI/index.html
index f2d54b4..eb7b8e7 100644
--- a/GUI/index.html
+++ b/GUI/index.html
@@ -33,27 +33,27 @@
             <div class="sidebar-nav">
                 <div class="nav-item active" data-page="play">
                     <i class="fas fa-play"></i>
-                    <span class="nav-tooltip">Play</span>
+                    <span class="nav-tooltip" data-i18n="nav.play">Play</span>
                 </div>
                 <div class="nav-item" data-page="mods">
                     <i class="fas fa-box"></i>
-                    <span class="nav-tooltip">Mods</span>
+                    <span class="nav-tooltip" data-i18n="nav.mods">Mods</span>
                 </div>
                 <div class="nav-item" data-page="news">
                     <i class="fas fa-newspaper"></i>
-                    <span class="nav-tooltip">News</span>
+                    <span class="nav-tooltip" data-i18n="nav.news">News</span>
                 </div>
                 <div class="nav-item" data-page="chat">
                     <i class="fas fa-comments"></i>
-                    <span class="nav-tooltip">Players Chat</span>
+                    <span class="nav-tooltip" data-i18n="nav.chat">Players Chat</span>
                 </div>
                 <div class="nav-item" data-page="settings">
                     <i class="fas fa-cog"></i>
-                    <span class="nav-tooltip">Settings</span>
+                    <span class="nav-tooltip" data-i18n="nav.settings">Settings</span>
                 </div>
                 <div class="nav-item" data-page="skins">
                     <i class="fas fa-user"></i>
-                    <span class="nav-tooltip">Skins</span>
+                    <span class="nav-tooltip" data-i18n="nav.skins">Skins</span>
                 </div>
                 <div class="nav-item" data-page="logs" id="openLogsBtn" onclick="openLogs()">
                     <i class="fas fa-terminal"></i>
@@ -68,7 +68,7 @@
             <header class="header">
                 <div id="playersOnlineCounter" class="players-counter">
                     <i class="fas fa-users"></i>
-                    <span class="counter-label">Players:</span>
+                    <span class="counter-label" data-i18n="header.playersLabel">Players:</span>
                     <span id="onlineCount" class="counter-value">0</span>
                 </div>
 
@@ -85,7 +85,7 @@
                         <div class="profile-divider"></div>
                         <div class="profile-action" onclick="openProfileManager()">
                             <i class="fas fa-cog"></i>
-                            <span>Manage Profiles</span>
+                            <span data-i18n="header.manageProfiles">Manage Profiles</span>
                         </div>
                     </div>
                 </div>
@@ -105,7 +105,7 @@
                     HY<span class="title-accent">TALE</span>
                 </h1>
                 <div class="game-tags">
-                    <span class="tag">FREE TO PLAY</span>
+                    <span class="tag" data-i18n="header.f2p">FREE TO PLAY</span>
                 </div>
             </div>
 
@@ -116,27 +116,27 @@
                             <h1 class="install-title">
                                 HYTA<span class="title-accent">LE</span>
                             </h1>
-                            <p class="install-subtitle">FREE TO PLAY LAUNCHER</p>
+                            <p class="install-subtitle" data-i18n="install.title">FREE TO PLAY LAUNCHER</p>
                         </div>
 
                         <div class="install-form">
                             <div class="form-group">
-                                <label class="form-label">Player Name</label>
-                                <input type="text" id="installPlayerName" placeholder="Enter your name"
+                                <label class="form-label" data-i18n="install.playerName">Player Name</label>
+                                <input type="text" id="installPlayerName" data-i18n-placeholder="install.playerNamePlaceholder"
                                     class="form-input" value="Player" />
                             </div>
 
                             <div class="form-group">
                                 <label class="checkbox-group">
                                     <input type="checkbox" id="installCustomCheck" class="custom-checkbox">
-                                    <span class="checkbox-label">Custom Installation</span>
+                                    <span class="checkbox-label" data-i18n="install.customInstallation">Custom Installation</span>
                                 </label>
 
                                 <div id="installCustomOptions" class="custom-options">
                                     <div class="form-subgroup">
-                                        <label class="form-label">Installation Folder</label>
+                                        <label class="form-label" data-i18n="install.installationFolder">Installation Folder</label>
                                         <div class="input-with-button">
-                                            <input type="text" id="installPath" placeholder="Default location"
+                                            <input type="text" id="installPath" data-i18n-placeholder="install.pathPlaceholder"
                                                 class="form-input" readonly />
                                             <button onclick="browseInstallPath()" class="browse-btn">
                                                 <i class="fas fa-folder-open"></i>
@@ -148,7 +148,7 @@
 
                             <button id="installBtn" class="install-button" onclick="installGame()">
                                 <i class="fas fa-download mr-2"></i>
-                                <span id="installText">INSTALL HYTALE</span>
+                                <span id="installText" data-i18n="install.installButton">INSTALL HYTALE</span>
                             </button>
                         </div>
                     </div>
@@ -161,14 +161,14 @@
                                 <div class="play-header">
                                     <h2 class="play-title">
                                         <i class="fas fa-play-circle mr-2"></i>
-                                        READY TO PLAY
+                                        <span data-i18n="play.ready">READY TO PLAY</span>
                                     </h2>
-                                    <p class="play-subtitle">Launch Hytale and enter the adventure</p>
+                                    <p class="play-subtitle" data-i18n="play.subtitle">Launch Hytale and enter the adventure</p>
                                 </div>
 
                                 <button id="homePlayBtn" class="home-play-button" onclick="launch()">
                                     <i class="fas fa-play"></i>
-                                    <span>PLAY HYTALE</span>
+                                    <span data-i18n="play.playButton">PLAY HYTALE</span>
                                 </button>
                             </div>
                         </div>
@@ -177,10 +177,10 @@
                             <div class="news-header">
                                 <h2 class="news-title">
                                     <i class="fas fa-star mr-2"></i>
-                                    LATEST NEWS
+                                    <span data-i18n="play.latestNews">LATEST NEWS</span>
                                 </h2>
                                 <button class="view-all-btn" onclick="navigateToPage('news')">
-                                    VIEW ALL <i class="fas fa-arrow-right ml-1"></i>
+                                    <span data-i18n="play.viewAll">VIEW ALL</span> <i class="fas fa-arrow-right ml-1"></i>
                                 </button>
                             </div>
                             <div id="newsGrid" class="news-grid-horizontal"></div>
@@ -191,12 +191,12 @@
                         <div class="mods-header">
                             <div class="mods-search-container">
                                 <i class="fas fa-search"></i>
-                                <input type="text" id="modsSearch" placeholder="Search mods..." class="mods-search" />
+                                <input type="text" id="modsSearch" data-i18n-placeholder="mods.searchPlaceholder" class="mods-search" />
                             </div>
                             <div class="mods-actions">
                                 <button id="myModsBtn" class="mods-btn-primary">
                                     <i class="fas fa-box"></i>
-                                    MY MODS
+                                    <span data-i18n="mods.myMods">MY MODS</span>
                                 </button>
                             </div>
                         </div>
@@ -207,13 +207,13 @@
                         <div class="mods-pagination">
                             <button id="prevPage" class="pagination-btn">
                                 <i class="fas fa-chevron-left"></i>
-                                PREVIOUS
+                                <span data-i18n="mods.previous">PREVIOUS</span>
                             </button>
                             <span class="pagination-info">
-                                Page <span id="currentPage">1</span> of <span id="totalPages">1</span>
+                                <span data-i18n="mods.page">Page</span> <span id="currentPage">1</span> <span data-i18n="mods.of">of</span> <span id="totalPages">1</span>
                             </span>
                             <button id="nextPage" class="pagination-btn">
-                                NEXT
+                                <span data-i18n="mods.next">NEXT</span>
                                 <i class="fas fa-chevron-right"></i>
                             </button>
                         </div>
@@ -223,7 +223,7 @@
                         <div class="news-header">
                             <h2 class="news-title">
                                 <i class="fas fa-newspaper mr-2"></i>
-                                ALL NEWS
+                                <span data-i18n="news.title">ALL NEWS</span>
                             </h2>
                         </div>
                         <div id="allNewsGrid" class="news-grid-full"></div>
@@ -234,16 +234,16 @@
                             <div class="chat-header">
                                 <h2 class="chat-title">
                                     <i class="fas fa-comments mr-2"></i>
-                                    PLAYERS CHAT
+                                    <span data-i18n="chat.title">PLAYERS CHAT</span>
                                 </h2>
                                 <div class="chat-header-actions">
                                     <button id="chatColorBtn" class="chat-color-btn">
                                         <i class="fas fa-palette"></i>
-                                        <span>Color</span>
+                                        <span data-i18n="chat.pickColor">Color</span>
                                     </button>
                                     <div class="chat-online-badge">
                                         <i class="fas fa-circle"></i>
-                                        <span id="chatOnlineCount">0</span> online
+                                        <span id="chatOnlineCount">0</span> <span data-i18n="chat.online">online</span>
                                     </div>
                                 </div>
                             </div>
@@ -256,7 +256,7 @@
                             <div class="chat-footer">
                                 <div class="chat-input-container">
                                     <textarea id="chatInput" class="chat-input"
-                                        placeholder="Type your message... (Links are automatically censored)" rows="1"
+                                        data-i18n-placeholder="chat.inputPlaceholder" rows="1"
                                         maxlength="500"></textarea>
                                     <button id="chatSendBtn" class="chat-send-btn">
                                         <i class="fas fa-paper-plane"></i>
@@ -266,7 +266,7 @@
                                     <span class="chat-char-counter" id="chatCharCounter">0/500</span>
                                     <span class="chat-warning-text">
                                         <i class="fas fa-shield-alt"></i>
-                                        Secure chat - Links are censored
+                                        <span data-i18n="chat.secureChat">Secure chat - Links are censored</span>
                                     </span>
                                 </div>
                             </div>
@@ -278,26 +278,25 @@
                             <div class="settings-header">
                                 <h2 class="settings-title">
                                     <i class="fas fa-cog mr-2"></i>
-                                    SETTINGS
+                                    <span data-i18n="settings.title">SETTINGS</span>
                                 </h2>
                             </div>
 
                             <div class="settings-content">
-
                                 <div class="settings-section">
                                     <h3 class="settings-section-title">
                                         <i class="fas fa-gamepad"></i>
-                                        Game Options
+                                        <span data-i18n="settings.game">Game Options</span>
                                     </h3>
 
                                     <div class="settings-option">
                                         <div class="settings-input-group">
-                                            <label class="settings-input-label">Player Name</label>
+                                            <label class="settings-input-label" data-i18n="settings.playerName">Player Name</label>
                                             <input type="text" id="settingsPlayerName" class="settings-input"
-                                                placeholder="Enter your player name" maxlength="16" />
+                                                data-i18n-placeholder="settings.playerNamePlaceholder" maxlength="16" />
                                             <p class="settings-hint">
                                                 <i class="fas fa-user"></i>
-                                                This name will be used in-game (1-16 characters)
+                                                <span data-i18n="settings.playerNameHint">This name will be used in-game (1-16 characters)</span>
                                             </p>
                                         </div>
                                     </div>
@@ -308,8 +307,8 @@
                                                 onclick="openGameLocation()">
                                                 <i class="fas fa-folder-open"></i>
                                                 <div class="btn-content">
-                                                    <div class="btn-title">Open Game Location</div>
-                                                    <div class="btn-description">Open the game installation folder</div>
+                                                    <div class="btn-title" data-i18n="settings.openGameLocation">Open Game Location</div>
+                                                    <div class="btn-description" data-i18n="settings.openGameLocationDesc">Open the game installation folder</div>
                                                 </div>
                                             </button>
                                         </div>
@@ -321,8 +320,8 @@
                                                 onclick="repairGame()">
                                                 <i class="fas fa-tools"></i>
                                                 <div class="btn-content">
-                                                    <div class="btn-title">Repair Game</div>
-                                                    <div class="btn-description">Reinstall game files (preserves data)
+                                                    <div class="btn-title" data-i18n="settings.repairGame">Repair Game</div>
+                                                    <div class="btn-description" data-i18n="settings.reinstallGame">Reinstall game files (preserves data)
                                                     </div>
                                                 </div>
                                             </button>
@@ -330,21 +329,18 @@
 
 
                                         <div class="settings-input-group">
-                                            <label class="settings-input-label">GPU Preference</label>
+                                            <label class="settings-input-label" data-i18n="settings.gpuPreference">GPU Preference</label>
                                             <div class="segmented-control">
-                                                <input type="radio" id="gpu-auto" name="gpuPreference" value="auto"
-                                                    checked>
-                                                <label for="gpu-auto">Auto</label>
-                                                <input type="radio" id="gpu-integrated" name="gpuPreference"
-                                                    value="integrated">
-                                                <label for="gpu-integrated">Integrated</label>
-                                                <input type="radio" id="gpu-dedicated" name="gpuPreference"
-                                                    value="dedicated">
-                                                <label for="gpu-dedicated">Dedicated</label>
+                                                <input type="radio" id="gpu-auto" name="gpuPreference" value="auto" checked>
+                                                <label for="gpu-auto" data-i18n="settings.gpuAuto">Auto</label>
+                                                <input type="radio" id="gpu-integrated" name="gpuPreference" value="integrated">
+                                                <label for="gpu-integrated" data-i18n="settings.gpuIntegrated">Integrated</label>
+                                                <input type="radio" id="gpu-dedicated" name="gpuPreference" value="dedicated">
+                                                <label for="gpu-dedicated" data-i18n="settings.gpuDedicated">Dedicated</label>
                                             </div>
                                             <p class="settings-hint">
                                                 <i class="fas fa-info-circle"></i>
-                                                Select your preferred GPU (Linux: affects DRI_PRIME)
+                                                <span data-i18n="settings.gpuHint">Select your preferred GPU (Linux: affects DRI_PRIME)</span>
                                             </p>
                                             <div id="gpu-detection-info" class="gpu-detection-info"></div>
                                         </div>
@@ -354,15 +350,15 @@
                                 <div class="settings-section">
                                     <h3 class="settings-section-title">
                                         <i class="fas fa-fingerprint"></i>
-                                        Player UUID Management
+                                        <span data-i18n="settings.account">Player UUID Management</span>
                                     </h3>
 
                                     <div class="settings-option">
                                         <div class="settings-input-group">
-                                            <label class="settings-input-label">Current UUID</label>
+                                            <label class="settings-input-label" data-i18n="settings.currentUUID">Current UUID</label>
                                             <div class="uuid-display-container">
                                                 <input type="text" id="currentUuid" class="settings-input uuid-input"
-                                                    readonly placeholder="Loading UUID..." />
+                                                    readonly data-i18n-placeholder="settings.uuidPlaceholder" />
                                                 <button id="copyUuidBtn" class="uuid-btn copy-btn" title="Copy UUID">
                                                     <i class="fas fa-copy"></i>
                                                 </button>
@@ -373,7 +369,7 @@
                                             </div>
                                             <p class="settings-hint">
                                                 <i class="fas fa-info-circle"></i>
-                                                Your unique player identifier for this username
+                                                <span data-i18n="settings.uuidHint">Your unique player identifier for this username</span>
                                             </p>
                                         </div>
                                     </div>
@@ -383,9 +379,8 @@
                                             <button id="manageUuidsBtn" class="settings-action-btn">
                                                 <i class="fas fa-list"></i>
                                                 <div class="btn-content">
-                                                    <div class="btn-title">Manage All UUIDs</div>
-                                                    <div class="btn-description">View and manage all player UUIDs
-                                                    </div>
+                                                    <div class="btn-title" data-i18n="settings.manageUUIDs">Manage All UUIDs</div>
+                                                    <div class="btn-description" data-i18n="settings.manageUUIDsDesc">View and manage all player UUIDs</div>
                                                 </div>
                                             </button>
                                         </div>
@@ -395,7 +390,7 @@
                                 <div class="settings-section">
                                     <h3 class="settings-section-title">
                                         <i class="fab fa-discord"></i>
-                                        Discord Integration
+                                        <span data-i18n="settings.discord">Discord Integration</span>
                                     </h3>
 
                                     <div class="settings-option">
@@ -403,8 +398,8 @@
                                             <input type="checkbox" id="discordRPCCheck" checked />
                                             <span class="checkmark"></span>
                                             <div class="checkbox-content">
-                                                <div class="checkbox-title">Enable Discord Rich Presence</div>
-                                                <div class="checkbox-description">Show your launcher activity on Discord
+                                                <div class="checkbox-title" data-i18n="settings.enableRPC">Enable Discord Rich Presence</div>
+                                                <div class="checkbox-description" data-i18n="settings.discordDescription">Show your launcher activity on Discord
                                                 </div>
                                             </div>
                                         </label>
@@ -414,7 +409,7 @@
                                 <div class="settings-section">
                                     <h3 class="settings-section-title">
                                         <i class="fas fa-coffee"></i>
-                                        Java Runtime
+                                        <span data-i18n="settings.java">Java Runtime</span>
                                     </h3>
 
                                     <div class="settings-option">
@@ -422,8 +417,8 @@
                                             <input type="checkbox" id="customJavaCheck" />
                                             <span class="checkmark"></span>
                                             <div class="checkbox-content">
-                                                <div class="checkbox-title">Use Custom Java Path</div>
-                                                <div class="checkbox-description">Override the bundled Java runtime with
+                                                <div class="checkbox-title" data-i18n="settings.useCustomJava">Use Custom Java Path</div>
+                                                <div class="checkbox-description" data-i18n="settings.javaDescription">Override the bundled Java runtime with
                                                     your own installation</div>
                                             </div>
                                         </label>
@@ -431,23 +426,38 @@
 
                                     <div id="customJavaOptions" class="custom-java-options" style="display: none;">
                                         <div class="settings-input-group">
-                                            <label class="settings-input-label">Java Executable Path</label>
+                                            <label class="settings-input-label" data-i18n="settings.javaPath">Java Executable Path</label>
                                             <div class="settings-input-with-button">
                                                 <input type="text" id="customJavaPath" class="settings-input"
-                                                    placeholder="Select Java path..." readonly />
+                                                    data-i18n-placeholder="settings.javaPathPlaceholder" readonly />
                                                 <button id="browseJavaBtn" class="settings-browse-btn">
                                                     <i class="fas fa-folder-open"></i>
-                                                    Browse
+                                                    <span data-i18n="settings.javaBrowse">Browse</span>
                                                 </button>
                                             </div>
                                             <p class="settings-hint">
                                                 <i class="fas fa-info-circle"></i>
-                                                Select the Java installation folder (supports Windows, Mac, Linux)
+                                                <span data-i18n="settings.javaHint">Select the Java installation folder (supports Windows, Mac, Linux)</span>
                                             </p>
                                         </div>
                                     </div>
                                 </div>
                                 
+                                <div class="settings-section">
+                                    <h3 class="settings-section-title">
+                                        <i class="fas fa-language"></i>
+                                        <span data-i18n="settings.language">Language</span>
+                                    </h3>
+
+                                    <div class="settings-option">
+                                        <div class="settings-input-group">
+                                            <label class="settings-input-label" data-i18n="settings.selectLanguage">Select Language</label>
+                                            <select id="languageSelect" class="settings-input">
+                                                <!-- Options populated by i18n.js -->
+                                            </select>
+                                        </div>
+                                    </div>
+                                </div>
                             </div>
                         </div>
                     </div>
@@ -455,8 +465,8 @@
                     <div id="skins-page" class="page">
                         <div class="placeholder-content">
                             <i class="fas fa-user text-6xl mb-4 text-purple-500"></i>
-                            <h2>Skins</h2>
-                            <p>Skin customization coming soon...</p>
+                            <h2 data-i18n="skins.title">Skins</h2>
+                            <p data-i18n="skins.comingSoon">Skin customization coming soon...</p>
                         </div>
                     </div>
 
@@ -465,22 +475,22 @@
                             <div class="logs-header">
                                 <h2 class="logs-title">
                                     <i class="fas fa-terminal"></i>
-                                    SYSTEM LOGS
+                                    <span data-i18n="settings.logs">SYSTEM LOGS</span>
                                 </h2>
                                 <div class="logs-actions">
                                     <button class="logs-action-btn" onclick="copyLogs()">
-                                        <i class="fas fa-copy"></i> Copy
+                                        <i class="fas fa-copy"></i> <span data-i18n="settings.logsCopy">Copy</span>
                                     </button>
                                     <button class="logs-action-btn" onclick="refreshLogs()">
-                                        <i class="fas fa-sync-alt"></i> Refresh
+                                        <i class="fas fa-sync-alt"></i> <span data-i18n="settings.logsRefresh">Refresh</span>
                                     </button>
                                     <button class="logs-action-btn" onclick="openLogsFolder()">
-                                        <i class="fas fa-folder-open"></i> Open Folder
+                                        <i class="fas fa-folder-open"></i> <span data-i18n="settings.logsFolder">Open Folder</span>
                                     </button>
                                 </div>
                             </div>
                             <div id="logsTerminal" class="logs-terminal">
-                                <div class="text-gray-500 text-center mt-10">Loading logs...</div>
+                                <div class="text-gray-500 text-center mt-10" data-i18n="settings.logsLoading">Loading logs...</div>
                             </div>
                         </div>
                     </div>
@@ -493,7 +503,7 @@
             <div class="mods-modal-header">
                 <h2 class="mods-modal-title">
                     <i class="fas fa-box mr-2"></i>
-                    MY MODS
+                    <span data-i18n="mods.modalTitle">MY MODS</span>
                 </h2>
                 <button id="closeMyModsModal" class="mods-modal-close">
                     <i class="fas fa-times"></i>
@@ -509,7 +519,7 @@
     <div id="progressOverlay" class="progress-overlay" style="display: none;">
         <div class="progress-content">
             <div class="progress-info">
-                <span id="progressText">Initializing...</span>
+                <span id="progressText" data-i18n="progress.initializing">Initializing...</span>
                 <span id="progressPercent">0%</span>
             </div>
             <div class="progress-bar-container">
@@ -527,29 +537,29 @@
             <div class="chat-username-modal-header">
                 <h2 class="chat-username-modal-title">
                     <i class="fas fa-comments mr-2"></i>
-                    Join Chat
+                    <span data-i18n="chat.joinChat">Join Chat</span>
                 </h2>
             </div>
             <div class="chat-username-modal-body">
-                <p class="chat-username-modal-description">
+                <p class="chat-username-modal-description" data-i18n="chat.chooseUsername">
                     Choose a username to join the Players Chat
                 </p>
                 <div class="chat-username-input-group">
-                    <label for="chatUsernameInput" class="chat-username-label">Username</label>
+                    <label for="chatUsernameInput" class="chat-username-label" data-i18n="chat.username">Username</label>
                     <input type="text" id="chatUsernameInput" class="chat-username-input"
-                        placeholder="Enter your username..." maxlength="20" autocomplete="off" />
-                    <span class="chat-username-hint">3-20 characters, letters, numbers, - and _ only</span>
+                        data-i18n-placeholder="chat.usernamePlaceholder" maxlength="20" autocomplete="off" />
+                    <span class="chat-username-hint" data-i18n="chat.usernameHint">3-20 characters, letters, numbers, - and _ only</span>
                     <span id="chatUsernameError" class="chat-username-error"></span>
                 </div>
             </div>
             <div class="chat-username-modal-footer">
                 <button id="chatUsernameCancel" class="chat-username-btn-cancel">
                     <i class="fas fa-times"></i>
-                    Cancel
+                    <span data-i18n="common.cancel">Cancel</span>
                 </button>
                 <button id="chatUsernameSubmit" class="chat-username-btn-submit">
                     <i class="fas fa-check"></i>
-                    Join Chat
+                    <span data-i18n="chat.joinButton">Join Chat</span>
                 </button>
             </div>
         </div>
@@ -561,7 +571,7 @@
             <div class="uuid-modal-header">
                 <h2 class="uuid-modal-title">
                     <i class="fas fa-fingerprint mr-2"></i>
-                    UUID Management
+                    <span data-i18n="uuid.modalTitle">UUID Management</span>
                 </h2>
                 <button id="uuidModalClose" class="modal-close-btn">
                     <i class="fas fa-times"></i>
@@ -570,7 +580,7 @@
 
             <div class="uuid-modal-body">
                 <div class="uuid-current-section">
-                    <h3 class="uuid-section-title">Current User UUID</h3>
+                    <h3 class="uuid-section-title" data-i18n="uuid.currentUserUUID">Current User UUID</h3>
                     <div class="uuid-current-display">
                         <input type="text" id="modalCurrentUuid" class="uuid-display-input" readonly />
                         <button id="modalCopyUuidBtn" class="uuid-action-btn copy-btn" title="Copy UUID">
@@ -585,34 +595,34 @@
 
                 <div class="uuid-list-section">
                     <div class="uuid-list-header">
-                        <h3 class="uuid-section-title">All Player UUIDs</h3>
+                        <h3 class="uuid-section-title" data-i18n="uuid.allPlayerUUIDs">All Player UUIDs</h3>
                         <button id="generateNewUuidBtn" class="uuid-generate-btn">
                             <i class="fas fa-plus"></i>
-                            Generate New UUID
+                            <span data-i18n="uuid.generateNew">Generate New UUID</span>
                         </button>
                     </div>
                     <div id="uuidList" class="uuid-list">
                         <div class="uuid-loading">
                             <i class="fas fa-spinner fa-spin"></i>
-                            Loading UUIDs...
+                            <span data-i18n="uuid.loadingUUIDs">Loading UUIDs...</span>
                         </div>
                     </div>
                 </div>
 
                 <div class="uuid-custom-section">
-                    <h3 class="uuid-section-title">Set Custom UUID</h3>
+                    <h3 class="uuid-section-title" data-i18n="uuid.setCustomUUID">Set Custom UUID</h3>
                     <div class="uuid-custom-form">
                         <input type="text" id="customUuidInput" class="uuid-input"
-                            placeholder="Enter custom UUID (format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)"
+                            data-i18n-placeholder="uuid.customPlaceholder"
                             maxlength="36" />
                         <button id="setCustomUuidBtn" class="uuid-set-btn">
                             <i class="fas fa-check"></i>
-                            Set UUID
+                            <span data-i18n="uuid.setUUID">Set UUID</span>
                         </button>
                     </div>
                     <p class="uuid-custom-hint">
                         <i class="fas fa-exclamation-triangle"></i>
-                        Warning: Setting a custom UUID will change your current player identity
+                        <span data-i18n="uuid.warning">Warning: Setting a custom UUID will change your current player identity</span>
                     </p>
                 </div>
             </div>
@@ -625,7 +635,7 @@
             <div class="profile-modal-header">
                 <h2 class="profile-modal-title">
                     <i class="fas fa-users-cog mr-2"></i>
-                    Manage Profiles
+                    <span data-i18n="profiles.modalTitle">Manage Profiles</span>
                 </h2>
                 <button class="modal-close-btn" onclick="closeProfileManager()">
                     <i class="fas fa-times"></i>
@@ -636,10 +646,10 @@
                     <!-- Populated by JS -->
                 </div>
                 <div class="profile-create-section">
-                    <input type="text" id="newProfileName" placeholder="New Profile Name" class="profile-input"
+                    <input type="text" id="newProfileName" data-i18n-placeholder="profiles.newProfilePlaceholder" class="profile-input"
                         maxlength="20">
                     <button class="profile-create-btn" onclick="createNewProfile()">
-                        <i class="fas fa-plus"></i> Create Profile
+                        <i class="fas fa-plus"></i> <span data-i18n="profiles.createProfile">Create Profile</span>
                     </button>
                 </div>
             </div>
@@ -674,10 +684,10 @@
     <div id="discordNotification" class="discord-notification">
         <div class="notification-content">
             <i class="fab fa-discord"></i>
-            <span class="notification-text">Join our Discord community!</span>
+            <span class="notification-text" data-i18n="discord.notificationText">Join our Discord community!</span>
             <button class="notification-action"
                 onclick="window.electronAPI?.openExternal('https://discord.gg/n6HZ7NwSQd')">
-                Join Discord
+                <span data-i18n="discord.joinButton">Join Discord</span>
             </button>
         </div>
         <button class="notification-close" onclick="closeDiscordNotification()">
@@ -691,7 +701,7 @@
             <div class="chat-color-modal-header">
                 <h3 class="chat-color-modal-title">
                     <i class="fas fa-palette"></i>
-                    Customize Username Color
+                    <span data-i18n="chat.colorModal.title">Customize Username Color</span>
                 </h3>
                 <button class="modal-close-btn" onclick="closeChatColorModal()">
                     <i class="fas fa-times"></i>
@@ -699,7 +709,7 @@
             </div>
             <div class="chat-color-modal-body">
                 <div id="solidColorSection" class="color-section">
-                    <h4>Choose a solid color:</h4>
+                    <h4 data-i18n="chat.colorModal.chooseSolid">Choose a solid color:</h4>
                     <div class="predefined-colors">
                         <div class="color-option" data-color="#3498db" style="background: #3498db;"></div>
                         <div class="color-option" data-color="#e74c3c" style="background: #e74c3c;"></div>
@@ -711,25 +721,26 @@
                         <div class="color-option" data-color="#ff5722" style="background: #ff5722;"></div>
                     </div>
                     <div class="custom-color-input">
-                        <label for="customColor">Custom color:</label>
+                        <label for="customColor" data-i18n="chat.colorModal.customColor">Custom color:</label>
                         <input type="color" id="customColor" value="#3498db">
                     </div>
                 </div>
 
                 <div class="color-preview">
-                    <h4>Preview:</h4>
-                    <div id="colorPreview" class="preview-username">YourUsername</div>
+                    <h4 data-i18n="chat.colorModal.preview">Preview:</h4>
+                    <div id="colorPreview" class="preview-username" data-i18n="chat.colorModal.previewUsername">YourUsername</div>
                 </div>
             </div>
             <div class="chat-color-modal-footer">
-                <button class="btn-secondary" onclick="closeChatColorModal()">Cancel</button>
-                <button class="btn-primary" onclick="applyChatColor()">Apply Color</button>
+                <button class="btn-secondary" onclick="closeChatColorModal()"><span data-i18n="common.cancel">Cancel</span></button>
+                <button class="btn-primary" onclick="applyChatColor()"><span data-i18n="chat.colorModal.apply">Apply Color</span></button>
             </div>
         </div>
     </div>
 
+    <script src="js/i18n.js"></script>
     <script type="module" src="js/update.js"></script>
 </body>
 
 
-</html>
+</html>
\ No newline at end of file
diff --git a/GUI/js/i18n.js b/GUI/js/i18n.js
new file mode 100644
index 0000000..47199a3
--- /dev/null
+++ b/GUI/js/i18n.js
@@ -0,0 +1,89 @@
+// Minimal i18n system - optimized async loading
+const i18n = (() => {
+  let currentLang = 'en';
+  let translations = {};
+  const availableLanguages = [
+    { code: 'en', name: 'English' },
+    { code: 'es', name: 'Español' },
+    { code: 'pt-BR', name: 'Português (Brasil)' }
+  ];
+
+  // Load single language file
+  async function loadLanguage(lang) {
+    if (translations[lang]) return true;
+    
+    try {
+      const response = await fetch(`locales/${lang}.json`);
+      if (response.ok) {
+        translations[lang] = await response.json();
+        return true;
+      }
+    } catch (e) {
+      console.warn(`Failed to load language: ${lang}`);
+    }
+    return false;
+  }
+
+  // Get translation by key
+  function t(key) {
+    const keys = key.split('.');
+    let value = translations[currentLang];
+    
+    for (const k of keys) {
+      if (value && value[k] !== undefined) {
+        value = value[k];
+      } else {
+        return key;
+      }
+    }
+    
+    return value;
+  }
+
+  // Set language
+  async function setLanguage(lang) {
+    await loadLanguage(lang);
+    if (translations[lang]) {
+      currentLang = lang;
+      updateDOM();
+      window.electronAPI?.saveLanguage(lang);
+    }
+  }
+
+  // Update all elements with data-i18n attribute
+  function updateDOM() {
+    document.querySelectorAll('[data-i18n]').forEach(el => {
+      const key = el.getAttribute('data-i18n');
+      el.textContent = t(key);
+    });
+
+    document.querySelectorAll('[data-i18n-placeholder]').forEach(el => {
+      const key = el.getAttribute('data-i18n-placeholder');
+      el.placeholder = t(key);
+    });
+
+    document.querySelectorAll('[data-i18n-title]').forEach(el => {
+      const key = el.getAttribute('data-i18n-title');
+      el.title = t(key);
+    });
+  }
+
+  // Initialize - load saved language only
+  async function init(savedLang) {
+    const lang = savedLang || 'en';
+    await loadLanguage(lang);
+    currentLang = lang;
+    updateDOM();
+  }
+
+  return {
+    init,
+    t,
+    setLanguage,
+    getAvailableLanguages: () => availableLanguages,
+    getCurrentLanguage: () => currentLang
+  };
+})();
+
+// Make i18n globally available
+window.i18n = i18n;
diff --git a/GUI/js/install.js b/GUI/js/install.js
index 79a51ef..36bb46f 100644
--- a/GUI/js/install.js
+++ b/GUI/js/install.js
@@ -51,7 +51,7 @@ export async function installGame() {
   isDownloading = true;
   if (installBtn) {
     installBtn.disabled = true;
-    installText.textContent = 'INSTALLING...';
+    installText.textContent = window.i18n ? window.i18n.t('install.installing') : 'INSTALLING...';
   }
   
   try {
@@ -59,8 +59,9 @@ export async function installGame() {
       const result = await window.electronAPI.installGame(playerName, '', installPath);
       
       if (result.success) {
+        const successMsg = window.i18n ? window.i18n.t('progress.installationComplete') : 'Installation completed successfully!';
         if (window.LauncherUI) {
-          window.LauncherUI.updateProgress({ message: 'Installation completed successfully!' });
+          window.LauncherUI.updateProgress({ message: successMsg });
           setTimeout(() => {
             window.LauncherUI.hideProgress();
             window.LauncherUI.showLauncherOrInstall(true);
@@ -76,8 +77,9 @@ export async function installGame() {
       simulateInstallation(playerName);
     }
   } catch (error) {
+    const errorMsg = window.i18n ? window.i18n.t('progress.installationFailed').replace('{error}', error.message) : `Installation failed: ${error.message}`;
     if (window.LauncherUI) {
-      window.LauncherUI.updateProgress({ message: `Installation failed: ${error.message}` });
+      window.LauncherUI.updateProgress({ message: errorMsg });
       setTimeout(() => {
         window.LauncherUI.hideProgress();
         resetInstallButton();
@@ -92,10 +94,13 @@ function simulateInstallation(playerName) {
     progress += Math.random() * 3;
     if (progress > 100) progress = 100;
     
+    const installingMsg = window.i18n ? window.i18n.t('progress.installingGameFiles') : 'Installing game files...';
+    const completeMsg = window.i18n ? window.i18n.t('progress.installComplete') : 'Installation complete!';
+    
     if (window.LauncherUI) {
       window.LauncherUI.updateProgress({
         percent: progress,
-        message: progress < 100 ? 'Installing game files...' : 'Installation complete!',
+        message: progress < 100 ? installingMsg : completeMsg,
         speed: 1024 * 1024 * (5 + Math.random() * 10),
         downloaded: progress * 1024 * 1024 * 20,
         total: 1024 * 1024 * 2000
@@ -104,9 +109,10 @@ function simulateInstallation(playerName) {
     
     if (progress >= 100) {
       clearInterval(interval);
+      const successMsg = window.i18n ? window.i18n.t('progress.installationComplete') : 'Installation completed successfully!';
       setTimeout(() => {
         if (window.LauncherUI) {
-          window.LauncherUI.updateProgress({ message: 'Installation completed successfully!' });
+          window.LauncherUI.updateProgress({ message: successMsg });
           setTimeout(() => {
             window.LauncherUI.hideProgress();
             window.LauncherUI.showLauncherOrInstall(true);
diff --git a/GUI/js/launcher.js b/GUI/js/launcher.js
index 047078d..7e33b72 100644
--- a/GUI/js/launcher.js
+++ b/GUI/js/launcher.js
@@ -160,7 +160,8 @@ window.deleteProfile = async (id) => {
 window.switchProfile = async (id) => {
   try {
     if (window.LauncherUI) window.LauncherUI.showProgress();
-    if (window.LauncherUI) window.LauncherUI.updateProgress({ message: 'Switching Profile...' });
+    const switchingMsg = window.i18n ? window.i18n.t('progress.switchingProfile') : 'Switching Profile...';
+    if (window.LauncherUI) window.LauncherUI.updateProgress({ message: switchingMsg });
 
     await window.electronAPI.profile.activate(id);
 
@@ -178,7 +179,8 @@ window.switchProfile = async (id) => {
     if (dropdown) dropdown.classList.remove('show');
 
     if (window.LauncherUI) {
-      window.LauncherUI.updateProgress({ message: 'Profile Switched!' });
+      const switchedMsg = window.i18n ? window.i18n.t('progress.profileSwitched') : 'Profile Switched!';
+      window.LauncherUI.updateProgress({ message: switchedMsg });
       setTimeout(() => window.LauncherUI.hideProgress(), 1000);
     }
 
@@ -221,7 +223,8 @@ export async function launch() {
   }
 
   try {
-    if (window.LauncherUI) window.LauncherUI.updateProgress({ message: 'Starting game...' });
+    const startingMsg = window.i18n ? window.i18n.t('progress.startingGame') : 'Starting game...';
+    if (window.LauncherUI) window.LauncherUI.updateProgress({ message: startingMsg });
 
     if (window.electronAPI && window.electronAPI.launchGame) {
       const result = await window.electronAPI.launchGame(playerName, javaPath, '', gpuPreference);
@@ -261,7 +264,12 @@ export async function launch() {
   }
 }
 
-function showCustomConfirm(message, title = 'Confirm Action', onConfirm, onCancel = null, confirmText = 'Confirm', cancelText = 'Cancel') {
+function showCustomConfirm(message, title, onConfirm, onCancel = null, confirmText, cancelText) {
+  // Apply defaults with i18n support
+  title = title || (window.i18n ? window.i18n.t('confirm.defaultTitle') : 'Confirm Action');
+  confirmText = confirmText || (window.i18n ? window.i18n.t('common.confirm') : 'Confirm');
+  cancelText = cancelText || (window.i18n ? window.i18n.t('common.cancel') : 'Cancel');
+  
   const existingModal = document.querySelector('.custom-confirm-modal');
   if (existingModal) {
     existingModal.remove();
@@ -383,22 +391,28 @@ function showCustomConfirm(message, title = 'Confirm Action', onConfirm, onCance
 }
 
 export async function uninstallGame() {
+  const message = window.i18n ? window.i18n.t('confirm.uninstallGameMessage') : 'Are you sure you want to uninstall Hytale? All game files will be deleted.';
+  const title = window.i18n ? window.i18n.t('confirm.uninstallGameTitle') : 'Uninstall Game';
+  const confirmBtn = window.i18n ? window.i18n.t('confirm.uninstallGameButton') : 'Uninstall';
+  const cancelBtn = window.i18n ? window.i18n.t('common.cancel') : 'Cancel';
+  
   showCustomConfirm(
-    'Are you sure you want to uninstall Hytale? All game files will be deleted.',
-    'Uninstall Game',
+    message,
+    title,
     async () => {
       await performUninstall();
     },
     null,
-    'Uninstall',
-    'Cancel'
+    confirmBtn,
+    cancelBtn
   );
 }
 
 async function performUninstall() {
 
   if (window.LauncherUI) window.LauncherUI.showProgress();
-  if (window.LauncherUI) window.LauncherUI.updateProgress({ message: 'Uninstalling game...' });
+  const uninstallingMsg = window.i18n ? window.i18n.t('progress.uninstallingGame') : 'Uninstalling game...';
+  if (window.LauncherUI) window.LauncherUI.updateProgress({ message: uninstallingMsg });
   if (uninstallBtn) uninstallBtn.disabled = true;
 
   try {
@@ -406,8 +420,9 @@ async function performUninstall() {
       const result = await window.electronAPI.uninstallGame();
 
       if (result.success) {
+        const successMsg = window.i18n ? window.i18n.t('progress.gameUninstalled') : 'Game uninstalled successfully!';
         if (window.LauncherUI) {
-          window.LauncherUI.updateProgress({ message: 'Game uninstalled successfully!' });
+          window.LauncherUI.updateProgress({ message: successMsg });
           setTimeout(() => {
             window.LauncherUI.hideProgress();
             window.LauncherUI.showLauncherOrInstall(false);
@@ -417,9 +432,10 @@ async function performUninstall() {
         throw new Error(result.error || 'Uninstall failed');
       }
     } else {
+      const successMsg = window.i18n ? window.i18n.t('progress.gameUninstalled') : 'Game uninstalled successfully!';
       setTimeout(() => {
         if (window.LauncherUI) {
-          window.LauncherUI.updateProgress({ message: 'Game uninstalled successfully!' });
+          window.LauncherUI.updateProgress({ message: successMsg });
           setTimeout(() => {
             window.LauncherUI.hideProgress();
             window.LauncherUI.showLauncherOrInstall(false);
@@ -428,8 +444,9 @@ async function performUninstall() {
       }, 2000);
     }
   } catch (error) {
+    const errorMsg = window.i18n ? window.i18n.t('progress.uninstallFailed').replace('{error}', error.message) : `Uninstall failed: ${error.message}`;
     if (window.LauncherUI) {
-      window.LauncherUI.updateProgress({ message: `Uninstall failed: ${error.message}` });
+      window.LauncherUI.updateProgress({ message: errorMsg });
       setTimeout(() => window.LauncherUI.hideProgress(), 3000);
     }
   } finally {
@@ -484,7 +501,7 @@ function resetPlayButton() {
   isDownloading = false;
   if (playBtn) {
     playBtn.disabled = false;
-    playText.textContent = 'PLAY';
+    playText.textContent = window.i18n ? window.i18n.t('play.play') : 'PLAY';
   }
 }
 
diff --git a/GUI/js/mods.js b/GUI/js/mods.js
index 934dd4f..32f4ddd 100644
--- a/GUI/js/mods.js
+++ b/GUI/js/mods.js
@@ -113,10 +113,15 @@ function displayInstalledMods(mods) {
     modsContainer.innerHTML = `
       <div class=\"empty-installed-mods\">
         <i class=\"fas fa-box-open\"></i>
-        <h4>No Mods Installed</h4>
-        <p>Add mods from CurseForge or import local files</p>
+        <h4 data-i18n="mods.noModsInstalled">No Mods Installed</h4>
+        <p data-i18n="mods.noModsInstalledDesc">Add mods from CurseForge or import local files</p>
       </div>
     `;
+    if (window.i18n) {
+      const container = modsContainer.querySelector('.empty-installed-mods');
+      container.querySelector('h4').textContent = window.i18n.t('mods.noModsInstalled');
+      container.querySelector('p').textContent = window.i18n.t('mods.noModsInstalledDesc');
+    }
     return;
   }
 
@@ -138,9 +143,9 @@ function displayInstalledMods(mods) {
 
 function createInstalledModCard(mod) {
   const statusClass = mod.enabled ? 'text-primary' : 'text-zinc-500';
-  const statusText = mod.enabled ? 'ACTIVE' : 'DISABLED';
+  const statusText = mod.enabled ? (window.i18n ? window.i18n.t('mods.active') : 'ACTIVE') : (window.i18n ? window.i18n.t('mods.disabled') : 'DISABLED');
   const toggleBtnClass = mod.enabled ? 'btn-disable' : 'btn-enable';
-  const toggleBtnText = mod.enabled ? 'DISABLE' : 'ENABLE';
+  const toggleBtnText = mod.enabled ? (window.i18n ? window.i18n.t('mods.disable') : 'DISABLE') : (window.i18n ? window.i18n.t('mods.enable') : 'ENABLE');
   const toggleIcon = mod.enabled ? 'fa-pause' : 'fa-play';
 
   return `
@@ -154,7 +159,7 @@ function createInstalledModCard(mod) {
           <h4 class="installed-mod-name">${mod.name}</h4>
           <span class="installed-mod-version">v${mod.version}</span>
         </div>
-        <p class="installed-mod-description">${mod.description || 'No description available'}</p>
+        <p class="installed-mod-description">${mod.description || (window.i18n ? window.i18n.t('mods.noDescription') : 'No description available')}</p>
       </div>
       
       <div class="installed-mod-actions">
@@ -163,7 +168,7 @@ function createInstalledModCard(mod) {
           ${statusText}
         </div>
         <div class="installed-mod-buttons">
-          <button id="delete-installed-${mod.id}" class="installed-mod-btn-icon" title="Delete mod">
+          <button id="delete-installed-${mod.id}" class="installed-mod-btn-icon" title="${window.i18n ? window.i18n.t('mods.delete') : 'Delete mod'}">
             <i class="fas fa-trash"></i>
           </button>
           <button id="toggle-installed-${mod.id}" class="installed-mod-btn-toggle ${toggleBtnClass}">
@@ -180,7 +185,7 @@ async function loadBrowseMods() {
   const browseContainer = document.getElementById('browseModsList');
   if (!browseContainer) return;
 
-  browseContainer.innerHTML = '<div class=\"loading-mods\"><div class=\"loading-spinner\"></div><span>Loading mods from CurseForge...</span></div>';
+  browseContainer.innerHTML = `<div class="loading-mods"><div class="loading-spinner"></div><span>${window.i18n ? window.i18n.t('mods.loadingMods') : 'Loading mods from CurseForge...'}</span></div>`;
 
   try {
     if (!API_KEY || API_KEY.length < 10) {
@@ -264,10 +269,15 @@ function displayBrowseMods(mods) {
     browseContainer.innerHTML = `
       <div class=\"empty-browse-mods\">
         <i class=\"fas fa-search\"></i>
-        <h4>No Mods Found</h4>
-        <p>Try adjusting your search</p>
+        <h4 data-i18n="mods.noModsFound">No Mods Found</h4>
+        <p data-i18n="mods.noModsFoundDesc">Try adjusting your search</p>
       </div>
     `;
+    if (window.i18n) {
+      const container = browseContainer.querySelector('.empty-browse-mods');
+      container.querySelector('h4').textContent = window.i18n.t('mods.noModsFound');
+      container.querySelector('p').textContent = window.i18n.t('mods.noModsFoundDesc');
+    }
     return;
   }
 
@@ -324,16 +334,16 @@ function createBrowseModCard(mod) {
       <div class=\"mod-actions\">
         <button id=\"view-${mod.id}\" class=\"mod-btn-toggle bg-blue-600 text-white hover:bg-blue-700\" onclick=\"window.modsManager.viewModPage(${mod.id})\">
           <i class=\"fas fa-external-link-alt\"></i>
-          VIEW
+          ${window.i18n ? window.i18n.t('mods.view') : 'VIEW'}
         </button>
         ${!isInstalled ?
-      `<button id=\"install-${mod.id}\" class=\"mod-btn-toggle bg-primary text-black hover:bg-primary/80\">
-            <i class=\"fas fa-download\"></i>
-            INSTALL
+      `<button id="install-${mod.id}" class="mod-btn-toggle bg-primary text-black hover:bg-primary/80">
+            <i class="fas fa-download"></i>
+            ${window.i18n ? window.i18n.t('mods.install') : 'INSTALL'}
           </button>` :
-      `<button class=\"mod-btn-toggle bg-white/10 text-white\" disabled>
-            <i class=\"fas fa-check\"></i>
-            INSTALLED
+      `<button class="mod-btn-toggle bg-white/10 text-white" disabled>
+            <i class="fas fa-check"></i>
+            ${window.i18n ? window.i18n.t('mods.installed') : 'INSTALLED'}
           </button>`
     }
       </div>
@@ -343,7 +353,8 @@ function createBrowseModCard(mod) {
 
 async function downloadAndInstallMod(modInfo) {
   try {
-    window.LauncherUI?.showProgress(`Downloading ${modInfo.name}...`);
+    const downloadMsg = window.i18n ? window.i18n.t('notifications.modsDownloading').replace('{name}', modInfo.name) : `Downloading ${modInfo.name}...`;
+    window.LauncherUI?.showProgress(downloadMsg);
 
     const result = await window.electronAPI?.downloadMod(modInfo);
 
@@ -367,20 +378,23 @@ async function downloadAndInstallMod(modInfo) {
       await loadInstalledMods();
       await loadBrowseMods();
       window.LauncherUI?.hideProgress();
-      showNotification(`${modInfo.name} installed successfully! 🎉`, 'success');
+      const successMsg = window.i18n ? window.i18n.t('notifications.modsInstalledSuccess').replace('{name}', modInfo.name) : `${modInfo.name} installed successfully! 🎉`;
+      showNotification(successMsg, 'success');
     } else {
       throw new Error(result?.error || 'Failed to download mod');
     }
   } catch (error) {
     console.error('Error downloading mod:', error);
     window.LauncherUI?.hideProgress();
-    showNotification('Failed to download mod: ' + error.message, 'error');
+    const errorMsg = window.i18n ? window.i18n.t('notifications.modsDownloadFailed').replace('{error}', error.message) : 'Failed to download mod: ' + error.message;
+    showNotification(errorMsg, 'error');
   }
 }
 
 async function toggleMod(modId) {
   try {
-    window.LauncherUI?.showProgress('Toggling mod...');
+    const toggleMsg = window.i18n ? window.i18n.t('notifications.modsTogglingMod') : 'Toggling mod...';
+    window.LauncherUI?.showProgress(toggleMsg);
 
     const modsPath = await window.electronAPI?.getModsPath();
     const result = await window.electronAPI?.toggleMod(modId, modsPath);
@@ -394,7 +408,8 @@ async function toggleMod(modId) {
   } catch (error) {
     console.error('Error toggling mod:', error);
     window.LauncherUI?.hideProgress();
-    showNotification('Failed to toggle mod: ' + error.message, 'error');
+    const errorMsg = window.i18n ? window.i18n.t('notifications.modsToggleFailed').replace('{error}', error.message) : 'Failed to toggle mod: ' + error.message;
+    showNotification(errorMsg, 'error');
   }
 }
 
@@ -402,11 +417,16 @@ async function deleteMod(modId) {
   const mod = installedMods.find(m => m.id === modId);
   if (!mod) return;
 
+  const confirmMsg = window.i18n ? 
+    window.i18n.t('mods.confirmDelete').replace('{name}', mod.name) + ' ' + window.i18n.t('mods.confirmDeleteDesc') :
+    `Are you sure you want to delete "${mod.name}"? This action cannot be undone.`;
+  
   showConfirmModal(
-    `Are you sure you want to delete "${mod.name}"? This action cannot be undone.`,
+    confirmMsg,
     async () => {
       try {
-        window.LauncherUI?.showProgress('Deleting mod...');
+        const deleteMsg = window.i18n ? window.i18n.t('notifications.modsDeletingMod') : 'Deleting mod...';
+        window.LauncherUI?.showProgress(deleteMsg);
 
         const modsPath = await window.electronAPI?.getModsPath();
         const result = await window.electronAPI?.uninstallMod(modId, modsPath);
@@ -415,14 +435,16 @@ async function deleteMod(modId) {
           await loadInstalledMods();
           await loadBrowseMods();
           window.LauncherUI?.hideProgress();
-          showNotification(`"${mod.name}" deleted successfully`, 'success');
+          const successMsg = window.i18n ? window.i18n.t('notifications.modsDeletedSuccess').replace('{name}', mod.name) : `"${mod.name}" deleted successfully`;
+          showNotification(successMsg, 'success');
         } else {
           throw new Error(result?.error || 'Failed to delete mod');
         }
       } catch (error) {
         console.error('Error deleting mod:', error);
         window.LauncherUI?.hideProgress();
-        showNotification('Failed to delete mod: ' + error.message, 'error');
+        const errorMsg = window.i18n ? window.i18n.t('notifications.modsDeleteFailed').replace('{error}', error.message) : 'Failed to delete mod: ' + error.message;
+        showNotification(errorMsg, 'error');
       }
     }
   );
@@ -571,7 +593,7 @@ function showConfirmModal(message, onConfirm, onCancel = null) {
     <div style="padding: 24px; border-bottom: 1px solid rgba(255,255,255,0.1);">
       <div style="display: flex; align-items: center; gap: 12px; color: #ef4444;">
         <i class="fas fa-exclamation-triangle" style="font-size: 24px;"></i>
-        <h3 style="margin: 0; font-size: 1.2rem; font-weight: 600;">Confirm Deletion</h3>
+        <h3 style="margin: 0; font-size: 1.2rem; font-weight: 600;">${window.i18n ? window.i18n.t('mods.confirmDeletion') : 'Confirm Deletion'}</h3>
       </div>
     </div>
     <div style="padding: 24px; color: #e5e7eb;">
@@ -587,7 +609,7 @@ function showConfirmModal(message, onConfirm, onCancel = null) {
         cursor: pointer;
         font-weight: 500;
         transition: all 0.2s;
-      ">Cancel</button>
+      ">${window.i18n ? window.i18n.t('common.cancel') : 'Cancel'}</button>
       <button class="mod-confirm-delete" style="
         background: #ef4444;
         color: white;
@@ -597,7 +619,7 @@ function showConfirmModal(message, onConfirm, onCancel = null) {
         cursor: pointer;
         font-weight: 500;
         transition: all 0.2s;
-      ">Delete</button>
+      ">${window.i18n ? window.i18n.t('common.delete') : 'Delete'}</button>
     </div>
   `;
 
@@ -715,7 +737,8 @@ function viewModPage(modId) {
     }
   } else {
     console.error('Mod not found with ID:', modId);
-    showNotification('Mod information not found', 'error');
+    const errorMsg = window.i18n ? window.i18n.t('notifications.modsModNotFound') : 'Mod information not found';
+    showNotification(errorMsg, 'error');
   }
 }
 
diff --git a/GUI/js/script.js b/GUI/js/script.js
index 7741528..101b2f0 100644
--- a/GUI/js/script.js
+++ b/GUI/js/script.js
@@ -8,17 +8,55 @@ import './chat.js';
 import './settings.js';
 import './logs.js';
 
-window.closeDiscordNotification = function () {
-  const notification = document.getElementById('discordNotification');
-  if (notification) {
-    notification.classList.add('hidden');
-    setTimeout(() => {
-      notification.style.display = 'none';
-    }, 300);
+// Initialize i18n immediately (before DOMContentLoaded)
+let i18nInitialized = false;
+(async () => {
+  const savedLang = await window.electronAPI?.loadLanguage();
+  await i18n.init(savedLang);
+  i18nInitialized = true;
+  
+  // Update language selector if DOM is already loaded
+  if (document.readyState === 'complete' || document.readyState === 'interactive') {
+    updateLanguageSelector();
   }
-};
+})();
+
+function updateLanguageSelector() {
+  const langSelect = document.getElementById('languageSelect');
+  if (langSelect) {
+    // Clear existing options
+    langSelect.innerHTML = '';
+    
+    const languages = i18n.getAvailableLanguages();
+    const currentLang = i18n.getCurrentLanguage();
+    
+    languages.forEach(lang => {
+      const option = document.createElement('option');
+      option.value = lang.code;
+      option.textContent = lang.name;
+      if (lang.code === currentLang) {
+        option.selected = true;
+      }
+      langSelect.appendChild(option);
+    });
+    
+    // Handle language change (add listener only once)
+    if (!langSelect.hasAttribute('data-listener-added')) {
+      langSelect.addEventListener('change', async (e) => {
+        await i18n.setLanguage(e.target.value);
+      });
+      langSelect.setAttribute('data-listener-added', 'true');
+    }
+  }
+}
 
 document.addEventListener('DOMContentLoaded', () => {
+  // Populate language selector (wait for i18n if needed)
+  if (i18nInitialized) {
+    updateLanguageSelector();
+  }
+  
+  // Discord notification
   const notification = document.getElementById('discordNotification');
   if (notification) {
     const dismissed = localStorage.getItem('discordNotificationDismissed');
@@ -32,8 +70,13 @@ document.addEventListener('DOMContentLoaded', () => {
   }
 });
 
-const originalClose = window.closeDiscordNotification;
-window.closeDiscordNotification = function () {
+window.closeDiscordNotification = function() {
+  const notification = document.getElementById('discordNotification');
+  if (notification) {
+    notification.classList.add('hidden');
+    setTimeout(() => {
+      notification.style.display = 'none';
+    }, 300);
+  }
   localStorage.setItem('discordNotificationDismissed', 'true');
-  originalClose();
 };
\ No newline at end of file
diff --git a/GUI/js/settings.js b/GUI/js/settings.js
index b62979b..0ec95e6 100644
--- a/GUI/js/settings.js
+++ b/GUI/js/settings.js
@@ -22,7 +22,12 @@ let uuidList;
 let customUuidInput;
 let setCustomUuidBtn;
 
-function showCustomConfirm(message, title = 'Confirm Action', onConfirm, onCancel = null, confirmText = 'Confirm', cancelText = 'Cancel') {
+function showCustomConfirm(message, title, onConfirm, onCancel = null, confirmText, cancelText) {
+  // Apply defaults with i18n support
+  title = title || (window.i18n ? window.i18n.t('confirm.defaultTitle') : 'Confirm Action');
+  confirmText = confirmText || (window.i18n ? window.i18n.t('common.confirm') : 'Confirm');
+  cancelText = cancelText || (window.i18n ? window.i18n.t('common.cancel') : 'Cancel');
+  
   const existingModal = document.querySelector('.custom-confirm-modal');
   if (existingModal) {
     existingModal.remove();
@@ -313,9 +318,11 @@ async function saveDiscordRPC() {
         
         // Feedback visuel pour l'utilisateur
         if (enabled) {
-          showNotification('Discord Rich Presence enabled', 'success');
+          const msg = window.i18n ? window.i18n.t('notifications.discordEnabled') : 'Discord Rich Presence enabled';
+          showNotification(msg, 'success');
         } else {
-          showNotification('Discord Rich Presence disabled', 'success');
+          const msg = window.i18n ? window.i18n.t('notifications.discordDisabled') : 'Discord Rich Presence disabled';
+          showNotification(msg, 'success');
         }
       } else {
         throw new Error('Failed to save Discord RPC setting');
@@ -323,7 +330,8 @@ async function saveDiscordRPC() {
     }
   } catch (error) {
     console.error('Error saving Discord RPC setting:', error);
-    showNotification('Failed to save Discord setting', 'error');
+    const msg = window.i18n ? window.i18n.t('notifications.discordSaveFailed') : 'Failed to save Discord setting';
+    showNotification(msg, 'error');
   }
 }
 
@@ -347,16 +355,19 @@ async function savePlayerName() {
     const playerName = settingsPlayerName.value.trim();
     
     if (!playerName) {
-      showNotification('Please enter a valid player name', 'error');
+      const msg = window.i18n ? window.i18n.t('notifications.playerNameRequired') : 'Please enter a valid player name';
+      showNotification(msg, 'error');
       return;
     }
 
     await window.electronAPI.saveUsername(playerName);
-    showNotification('Player name saved successfully', 'success');
+    const successMsg = window.i18n ? window.i18n.t('notifications.playerNameSaved') : 'Player name saved successfully';
+    showNotification(successMsg, 'success');
     
   } catch (error) {
     console.error('Error saving player name:', error);
-    showNotification('Failed to save player name', 'error');
+    const errorMsg = window.i18n ? window.i18n.t('notifications.playerNameSaveFailed') : 'Failed to save player name';
+    showNotification(errorMsg, 'error');
   }
 }
 
@@ -507,34 +518,43 @@ async function copyCurrentUuid() {
     const uuid = currentUuidDisplay ? currentUuidDisplay.value : modalCurrentUuid?.value;
     if (uuid && navigator.clipboard) {
       await navigator.clipboard.writeText(uuid);
-      showNotification('UUID copied to clipboard!', 'success');
+      const msg = window.i18n ? window.i18n.t('notifications.uuidCopied') : 'UUID copied to clipboard!';
+      showNotification(msg, 'success');
     }
   } catch (error) {
     console.error('Error copying UUID:', error);
-    showNotification('Failed to copy UUID', 'error');
+    const msg = window.i18n ? window.i18n.t('notifications.uuidCopyFailed') : 'Failed to copy UUID';
+    showNotification(msg, 'error');
   }
 }
 
 async function regenerateCurrentUuid() {
   try {
     if (window.electronAPI && window.electronAPI.resetCurrentUserUuid) {
+      const message = window.i18n ? window.i18n.t('confirm.regenerateUuidMessage') : 'Are you sure you want to generate a new UUID? This will change your player identity.';
+      const title = window.i18n ? window.i18n.t('confirm.regenerateUuidTitle') : 'Generate New UUID';
+      const confirmBtn = window.i18n ? window.i18n.t('confirm.regenerateUuidButton') : 'Generate';
+      const cancelBtn = window.i18n ? window.i18n.t('common.cancel') : 'Cancel';
+      
       showCustomConfirm(
-        'Are you sure you want to generate a new UUID? This will change your player identity.',
-        'Generate New UUID',
+        message,
+        title,
         async () => {
           await performRegenerateUuid();
         },
         null,
-        'Generate',
-        'Cancel'
+        confirmBtn,
+        cancelBtn
       );
     } else {
       console.error('electronAPI.resetCurrentUserUuid not available');
-      showNotification('UUID regeneration not available', 'error');
+      const msg = window.i18n ? window.i18n.t('notifications.uuidRegenNotAvailable') : 'UUID regeneration not available';
+      showNotification(msg, 'error');
     }
   } catch (error) {
     console.error('Error in regenerateCurrentUuid:', error);
-    showNotification('Failed to regenerate UUID', 'error');
+    const msg = window.i18n ? window.i18n.t('notifications.uuidRegenFailed') : 'Failed to regenerate UUID';
+    showNotification(msg, 'error');
   }
 }
 
@@ -544,7 +564,8 @@ async function performRegenerateUuid() {
     if (result.success && result.uuid) {
       if (currentUuidDisplay) currentUuidDisplay.value = result.uuid;
       if (modalCurrentUuid) modalCurrentUuid.value = result.uuid;
-      showNotification('New UUID generated successfully!', 'success');
+      const msg = window.i18n ? window.i18n.t('notifications.uuidGenerated') : 'New UUID generated successfully!';
+      showNotification(msg, 'success');
       
       if (uuidModal && uuidModal.style.display !== 'none') {
         await loadAllUuids();
@@ -554,7 +575,8 @@ async function performRegenerateUuid() {
     }
   } catch (error) {
     console.error('Error regenerating UUID:', error);
-    showNotification(`Failed to regenerate UUID: ${error.message}`, 'error');
+    const msg = window.i18n ? window.i18n.t('notifications.uuidRegenFailed').replace('{error}', error.message) : `Failed to regenerate UUID: ${error.message}`;
+    showNotification(msg, 'error');
   }
 }
 
@@ -647,19 +669,22 @@ async function generateNewUuid() {
       const newUuid = await window.electronAPI.generateNewUuid();
       if (newUuid) {
         if (customUuidInput) customUuidInput.value = newUuid;
-        showNotification('New UUID generated!', 'success');
+        const msg = window.i18n ? window.i18n.t('notifications.uuidGeneratedShort') : 'New UUID generated!';
+        showNotification(msg, 'success');
       }
     }
   } catch (error) {
     console.error('Error generating new UUID:', error);
-    showNotification('Failed to generate new UUID', 'error');
+    const msg = window.i18n ? window.i18n.t('notifications.uuidGenerateFailed') : 'Failed to generate new UUID';
+    showNotification(msg, 'error');
   }
 }
 
 async function setCustomUuid() {
   try {
     if (!customUuidInput || !customUuidInput.value.trim()) {
-      showNotification('Please enter a UUID', 'error');
+      const msg = window.i18n ? window.i18n.t('notifications.uuidRequired') : 'Please enter a UUID';
+      showNotification(msg, 'error');
       return;
     }
 
@@ -667,23 +692,30 @@ async function setCustomUuid() {
     
     const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
     if (!uuidRegex.test(uuid)) {
-      showNotification('Invalid UUID format', 'error');
+      const msg = window.i18n ? window.i18n.t('notifications.uuidInvalidFormat') : 'Invalid UUID format';
+      showNotification(msg, 'error');
       return;
     }
 
+    const message = window.i18n ? window.i18n.t('confirm.setCustomUuidMessage') : 'Are you sure you want to set this custom UUID? This will change your player identity.';
+    const title = window.i18n ? window.i18n.t('confirm.setCustomUuidTitle') : 'Set Custom UUID';
+    const confirmBtn = window.i18n ? window.i18n.t('confirm.setCustomUuidButton') : 'Set UUID';
+    const cancelBtn = window.i18n ? window.i18n.t('common.cancel') : 'Cancel';
+
     showCustomConfirm(
-      'Are you sure you want to set this custom UUID? This will change your player identity.',
-      'Set Custom UUID',
+      message,
+      title,
       async () => {
         await performSetCustomUuid(uuid);
       },
       null,
-      'Set UUID',
-      'Cancel'
+      confirmBtn,
+      cancelBtn
     );
   } catch (error) {
     console.error('Error in setCustomUuid:', error);
-    showNotification('Failed to set custom UUID', 'error');
+    const msg = window.i18n ? window.i18n.t('notifications.uuidSetFailed') : 'Failed to set custom UUID';
+    showNotification(msg, 'error');
   }
 }
 
@@ -698,7 +730,8 @@ async function setCustomUuid() {
           if (modalCurrentUuid) modalCurrentUuid.value = uuid;
           if (customUuidInput) customUuidInput.value = '';
           
-          showNotification('Custom UUID set successfully!', 'success');
+          const msg = window.i18n ? window.i18n.t('notifications.uuidSetSuccess') : 'Custom UUID set successfully!';
+          showNotification(msg, 'success');
           
           await loadAllUuids();
         } else {
@@ -707,7 +740,8 @@ async function setCustomUuid() {
       }
     } catch (error) {
       console.error('Error setting custom UUID:', error);
-      showNotification(`Failed to set custom UUID: ${error.message}`, 'error');
+      const msg = window.i18n ? window.i18n.t('notifications.uuidSetFailed').replace('{error}', error.message) : `Failed to set custom UUID: ${error.message}`;
+      showNotification(msg, 'error');
     }
   }
 
@@ -715,29 +749,37 @@ window.copyUuid = async function(uuid) {
   try {
     if (navigator.clipboard) {
       await navigator.clipboard.writeText(uuid);
-      showNotification('UUID copied to clipboard!', 'success');
+      const msg = window.i18n ? window.i18n.t('notifications.uuidCopied') : 'UUID copied to clipboard!';
+      showNotification(msg, 'success');
     }
   } catch (error) {
     console.error('Error copying UUID:', error);
-    showNotification('Failed to copy UUID', 'error');
+    const msg = window.i18n ? window.i18n.t('notifications.uuidCopyFailed') : 'Failed to copy UUID';
+    showNotification(msg, 'error');
   }
 };
 
 window.deleteUuid = async function(username) {
   try {
+    const message = window.i18n ? window.i18n.t('confirm.deleteUuidMessage').replace('{username}', username) : `Are you sure you want to delete the UUID for "${username}"? This action cannot be undone.`;
+    const title = window.i18n ? window.i18n.t('confirm.deleteUuidTitle') : 'Delete UUID';
+    const confirmBtn = window.i18n ? window.i18n.t('confirm.deleteUuidButton') : 'Delete';
+    const cancelBtn = window.i18n ? window.i18n.t('common.cancel') : 'Cancel';
+    
     showCustomConfirm(
-      `Are you sure you want to delete the UUID for "${username}"? This action cannot be undone.`,
-      'Delete UUID',
+      message,
+      title,
       async () => {
         await performDeleteUuid(username);
       },
       null,
-      'Delete',
-      'Cancel'
+      confirmBtn,
+      cancelBtn
     );
   } catch (error) {
     console.error('Error in deleteUuid:', error);
-    showNotification('Failed to delete UUID', 'error');
+    const msg = window.i18n ? window.i18n.t('notifications.uuidDeleteFailed') : 'Failed to delete UUID';
+    showNotification(msg, 'error');
   }
 };
 
@@ -747,7 +789,8 @@ async function performDeleteUuid(username) {
         const result = await window.electronAPI.deleteUuidForUser(username);
         
         if (result.success) {
-          showNotification('UUID deleted successfully!', 'success');
+          const msg = window.i18n ? window.i18n.t('notifications.uuidDeleteSuccess') : 'UUID deleted successfully!';
+          showNotification(msg, 'success');
           await loadAllUuids();
         } else {
           throw new Error(result.error || 'Failed to delete UUID');
@@ -755,7 +798,8 @@ async function performDeleteUuid(username) {
       }
     } catch (error) {
       console.error('Error deleting UUID:', error);
-      showNotification(`Failed to delete UUID: ${error.message}`, 'error');
+      const msg = window.i18n ? window.i18n.t('notifications.uuidDeleteFailed').replace('{error}', error.message) : `Failed to delete UUID: ${error.message}`;
+      showNotification(msg, 'error');
     }
 }
 
diff --git a/GUI/js/ui.js b/GUI/js/ui.js
index 7bf1e5d..f417c87 100644
--- a/GUI/js/ui.js
+++ b/GUI/js/ui.js
@@ -366,7 +366,7 @@ function lockPlayButton(locked) {
       if (!playButton.getAttribute('data-original-text')) {
         playButton.setAttribute('data-original-text', spanElement.textContent);
       }
-      spanElement.textContent = 'CHECKING...';
+      spanElement.textContent = window.i18n ? window.i18n.t('play.checking') : 'CHECKING...';
     }
 
     console.log('Play button locked');
@@ -377,9 +377,9 @@ function lockPlayButton(locked) {
     playButton.removeAttribute('data-locked');
 
     const spanElement = playButton.querySelector('span');
-    const originalText = playButton.getAttribute('data-original-text');
-    if (spanElement && originalText) {
-      spanElement.textContent = originalText;
+    if (spanElement) {
+      // Use i18n to get the current translation instead of restoring saved text
+      spanElement.textContent = window.i18n ? window.i18n.t('play.playButton') : 'PLAY HYTALE';
       playButton.removeAttribute('data-original-text');
     }
 
@@ -393,7 +393,8 @@ async function acceptFirstLaunchUpdate() {
   const existingGame = window.firstLaunchExistingGame;
 
   if (!existingGame) {
-    showNotification('Error: Game data not found', 'error');
+    const errorMsg = window.i18n ? window.i18n.t('notifications.gameDataNotFound') : 'Error: Game data not found';
+    showNotification(errorMsg, 'error');
     return;
   }
 
@@ -410,7 +411,8 @@ async function acceptFirstLaunchUpdate() {
 
   try {
     showProgress();
-    updateProgress({ message: 'Starting mandatory game update...', percent: 0 });
+    const updateMsg = window.i18n ? window.i18n.t('progress.startingUpdate') : 'Starting mandatory game update...';
+    updateProgress({ message: updateMsg, percent: 0 });
 
     const result = await window.electronAPI.acceptFirstLaunchUpdate(existingGame);
 
@@ -424,10 +426,12 @@ async function acceptFirstLaunchUpdate() {
 
     if (result.success) {
       hideProgress();
-      showNotification('Game updated successfully! 🎉', 'success');
+      const successMsg = window.i18n ? window.i18n.t('notifications.gameUpdatedSuccess') : 'Game updated successfully! 🎉';
+      showNotification(successMsg, 'success');
     } else {
       hideProgress();
-      showNotification(`Update failed: ${result.error}`, 'error');
+      const errorMsg = window.i18n ? window.i18n.t('notifications.updateFailed').replace('{error}', result.error) : `Update failed: ${result.error}`;
+      showNotification(errorMsg, 'error');
     }
   } catch (error) {
     if (modal) {
@@ -435,7 +439,8 @@ async function acceptFirstLaunchUpdate() {
     }
     lockPlayButton(false);
     hideProgress();
-    showNotification(`Update error: ${error.message}`, 'error');
+    const errorMsg = window.i18n ? window.i18n.t('notifications.updateError').replace('{error}', error.message) : `Update error: ${error.message}`;
+    showNotification(errorMsg, 'error');
   }
 }
 
diff --git a/GUI/locales/en.json b/GUI/locales/en.json
new file mode 100644
index 0000000..8e48030
--- /dev/null
+++ b/GUI/locales/en.json
@@ -0,0 +1,234 @@
+{
+  "nav": {
+    "play": "Play",
+    "mods": "Mods",
+    "news": "News",
+    "chat": "Players Chat",
+    "settings": "Settings",
+    "skins": "Skins"
+  },
+  "header": {
+    "playersLabel": "Players:",
+    "manageProfiles": "Manage Profiles",
+    "defaultProfile": "Default",
+    "f2p": "FREE TO PLAY"
+  },
+  "install": {
+    "title": "FREE TO PLAY LAUNCHER",
+    "playerName": "Player Name",
+    "playerNamePlaceholder": "Enter your name",
+    "customInstallation": "Custom Installation",
+    "installationFolder": "Installation Folder",
+    "pathPlaceholder": "Default location",
+    "browse": "Browse",
+    "installButton": "INSTALL HYTALE",
+    "installing": "INSTALLING..."
+  },
+  "play": {
+    "ready": "READY TO PLAY",
+    "subtitle": "Launch Hytale and enter the adventure",
+    "playButton": "PLAY HYTALE",
+    "latestNews": "LATEST NEWS",
+    "viewAll": "VIEW ALL",
+    "checking": "CHECKING...",
+    "play": "PLAY"
+  },
+  "mods": {
+    "searchPlaceholder": "Search mods...",
+    "myMods": "MY MODS",
+    "previous": "PREVIOUS",
+    "next": "NEXT",
+    "page": "Page",
+    "of": "of",
+    "modalTitle": "MY MODS",
+    "noModsFound": "No Mods Found",
+    "noModsFoundDesc": "Try adjusting your search",
+    "noModsInstalled": "No Mods Installed",
+    "noModsInstalledDesc": "Add mods from CurseForge or import local files",
+    "view": "VIEW",
+    "install": "INSTALL",
+    "installed": "INSTALLED",
+    "enable": "ENABLE",
+    "disable": "DISABLE",
+    "active": "ACTIVE",
+    "disabled": "DISABLED",
+    "delete": "Delete mod",
+    "noDescription": "No description available",
+    "confirmDelete": "Are you sure you want to delete \"{name}\"?",
+    "confirmDeleteDesc": "This action cannot be undone.",
+    "confirmDeletion": "Confirm Deletion"
+  },
+  "news": {
+    "title": "ALL NEWS",
+    "readMore": "Read More"
+  },
+  "chat": {
+    "title": "PLAYERS CHAT",
+    "pickColor": "Color",
+    "inputPlaceholder": "Type your message...",
+    "send": "Send",
+    "online": "online",
+    "charCounter": "{current}/{max}",
+    "secureChat": "Secure chat - Links are censored",
+    "joinChat": "Join Chat",
+    "chooseUsername": "Choose a username to join the Players Chat",
+    "username": "Username",
+    "usernamePlaceholder": "Enter your username...",
+    "usernameHint": "3-20 characters, letters, numbers, - and _ only",
+    "joinButton": "Join Chat",
+    "colorModal": {
+      "title": "Customize Username Color",
+      "chooseSolid": "Choose a solid color:",
+      "customColor": "Custom color:",
+      "preview": "Preview:",
+      "previewUsername": "Username",
+      "apply": "Apply Color"
+    }
+  },
+  "settings": {
+    "title": "SETTINGS",
+    "java": "Java Runtime",
+    "useCustomJava": "Use Custom Java Path",
+    "javaDescription": "Override the bundled Java runtime with your own installation",
+    "javaPath": "Java Executable Path",
+    "javaPathPlaceholder": "Select Java path...",
+    "javaBrowse": "Browse",
+    "javaHint": "Select the Java installation folder (supports Windows, Mac, Linux)",
+    "discord": "Discord Integration",
+    "enableRPC": "Enable Discord Rich Presence",
+    "discordDescription": "Show your launcher activity on Discord",
+    "game": "Game Options",
+    "playerName": "Player Name",
+    "playerNamePlaceholder": "Enter your player name",
+    "playerNameHint": "This name will be used in-game (1-16 characters)",
+    "openGameLocation": "Open Game Location",
+    "openGameLocationDesc": "Open the game installation folder",
+    "account": "Player UUID Management",
+    "currentUUID": "Current UUID",
+    "uuidPlaceholder": "Loading UUID...",
+    "copyUUID": "Copy UUID",
+    "regenerateUUID": "Regenerate UUID",
+    "uuidHint": "Your unique player identifier for this username",
+    "manageUUIDs": "Manage All UUIDs",
+    "manageUUIDsDesc": "View and manage all player UUIDs",
+    "language": "Language",
+    "selectLanguage": "Select Language",
+    "repairGame": "Repair Game",
+    "reinstallGame": "Reinstall game files (preserves data)",
+    "gpuPreference": "GPU Preference",
+    "gpuHint": "Select your preferred GPU (Linux: affects DRI_PRIME)",
+    "gpuAuto": "Auto",
+    "gpuIntegrated": "Integrated",
+    "gpuDedicated": "Dedicated",
+    "logs": "SYSTEM LOGS",
+    "logsCopy": "Copy",
+    "logsRefresh": "Refresh",
+    "logsFolder": "Open Folder",
+    "logsLoading": "Loading logs..."
+  },
+  "uuid": {
+    "modalTitle": "UUID Management",
+    "currentUserUUID": "Current User UUID",
+    "allPlayerUUIDs": "All Player UUIDs",
+    "generateNew": "Generate New UUID",
+    "loadingUUIDs": "Loading UUIDs...",
+    "setCustomUUID": "Set Custom UUID",
+    "customPlaceholder": "Enter custom UUID (format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)",
+    "setUUID": "Set UUID",
+    "warning": "Warning: Setting a custom UUID will change your current player identity",
+    "copyTooltip": "Copy UUID",
+    "regenerateTooltip": "Generate New UUID"
+  },
+  "profiles": {
+    "modalTitle": "Manage Profiles",
+    "newProfilePlaceholder": "New Profile Name",
+    "createProfile": "Create Profile"
+  },
+  "discord": {
+    "notificationText": "Join our Discord community!",
+    "joinButton": "Join Discord"
+  },
+  "skins": {
+    "title": "Skins",
+    "comingSoon": "Skin customization coming soon..."
+  },
+  "common": {
+    "confirm": "Confirm",
+    "cancel": "Cancel",
+    "save": "Save",
+    "close": "Close",
+    "delete": "Delete",
+    "edit": "Edit",
+    "loading": "Loading...",
+    "apply": "Apply"
+  },
+  "notifications": {
+    "gameDataNotFound": "Error: Game data not found",
+    "gameUpdatedSuccess": "Game updated successfully! 🎉",
+    "updateFailed": "Update failed: {error}",
+    "updateError": "Update error: {error}",
+    "discordEnabled": "Discord Rich Presence enabled",
+    "discordDisabled": "Discord Rich Presence disabled",
+    "discordSaveFailed": "Failed to save Discord setting",
+    "playerNameRequired": "Please enter a valid player name",
+    "playerNameSaved": "Player name saved successfully",
+    "playerNameSaveFailed": "Failed to save player name",
+    "uuidCopied": "UUID copied to clipboard!",
+    "uuidCopyFailed": "Failed to copy UUID",
+    "uuidRegenNotAvailable": "UUID regeneration not available",
+    "uuidRegenFailed": "Failed to regenerate UUID",
+    "uuidGenerated": "New UUID generated successfully!",
+    "uuidGeneratedShort": "New UUID generated!",
+    "uuidGenerateFailed": "Failed to generate new UUID",
+    "uuidRequired": "Please enter a UUID",
+    "uuidInvalidFormat": "Invalid UUID format",
+    "uuidSetFailed": "Failed to set custom UUID",
+    "uuidSetSuccess": "Custom UUID set successfully!",
+    "uuidDeleteFailed": "Failed to delete UUID",
+    "uuidDeleteSuccess": "UUID deleted successfully!",
+    "modsDownloading": "Downloading {name}...",
+    "modsTogglingMod": "Toggling mod...",
+    "modsDeletingMod": "Deleting mod...",
+    "modsLoadingMods": "Loading mods from CurseForge...",
+    "modsInstalledSuccess": "{name} installed successfully! 🎉",
+    "modsDeletedSuccess": "{name} deleted successfully",
+    "modsDownloadFailed": "Failed to download mod: {error}",
+    "modsToggleFailed": "Failed to toggle mod: {error}",
+    "modsDeleteFailed": "Failed to delete mod: {error}",
+    "modsModNotFound": "Mod information not found"
+  },
+  "confirm": {
+    "defaultTitle": "Confirm action",
+    "regenerateUuidTitle": "Generate new UUID",
+    "regenerateUuidMessage": "Are you sure you want to generate a new UUID? This will change your player identity.",
+    "regenerateUuidButton": "Generate",
+    "setCustomUuidTitle": "Set custom UUID",
+    "setCustomUuidMessage": "Are you sure you want to set this custom UUID? This will change your player identity.",
+    "setCustomUuidButton": "Set UUID",
+    "deleteUuidTitle": "Delete UUID",
+    "deleteUuidMessage": "Are you sure you want to delete the UUID for \"{username}\"? This action cannot be undone.",
+    "deleteUuidButton": "Delete",
+    "uninstallGameTitle": "Uninstall game",
+    "uninstallGameMessage": "Are you sure you want to uninstall Hytale? All game files will be deleted.",
+    "uninstallGameButton": "Uninstall"
+  },
+  "progress": {
+    "initializing": "Initializing...",
+    "downloading": "Downloading...",
+    "installing": "Installing...",
+    "extracting": "Extracting...",
+    "verifying": "Verifying...",
+    "switchingProfile": "Switching profile...",
+    "profileSwitched": "Profile switched!",
+    "startingGame": "Starting game...",
+    "launching": "LAUNCHING...",
+    "uninstallingGame": "Uninstalling game...",
+    "gameUninstalled": "Game uninstalled successfully!",
+    "uninstallFailed": "Uninstall failed: {error}",
+    "startingUpdate": "Starting mandatory game update...",
+    "installationComplete": "Installation completed successfully!",
+    "installationFailed": "Installation failed: {error}",
+    "installingGameFiles": "Installing game files...",
+    "installComplete": "Installation complete!"
+  }
+}
diff --git a/GUI/locales/es.json b/GUI/locales/es.json
new file mode 100644
index 0000000..fc3f4c4
--- /dev/null
+++ b/GUI/locales/es.json
@@ -0,0 +1,234 @@
+{
+  "nav": {
+    "play": "Jugar",
+    "mods": "Mods",
+    "news": "Noticias",
+    "chat": "Chat de Jugadores",
+    "settings": "Configuración",
+    "skins": "Aspectos"
+  },
+  "header": {
+    "playersLabel": "Jugadores:",
+    "manageProfiles": "Gestionar Perfiles",
+    "defaultProfile": "Predeterminado",
+    "f2p": "FREE TO PLAY"
+  },
+  "install": {
+    "title": "LAUNCHER GRATUITO",
+    "playerName": "Nombre del Jugador",
+    "playerNamePlaceholder": "Ingresa tu nombre",
+    "customInstallation": "Instalación Personalizada",
+    "installationFolder": "Carpeta de Instalación",
+    "pathPlaceholder": "Ubicación predeterminada",
+    "browse": "Examinar",
+    "installButton": "INSTALAR HYTALE",
+    "installing": "INSTALANDO..."
+  },
+  "play": {
+    "ready": "LISTO PARA JUGAR",
+    "subtitle": "Inicia Hytale y entra en la aventura",
+    "playButton": "JUGAR HYTALE",
+    "latestNews": "ÚLTIMAS NOTICIAS",
+    "viewAll": "VER TODO",
+    "checking": "VERIFICANDO...",
+    "play": "JUGAR"
+  },
+  "mods": {
+    "searchPlaceholder": "Buscar mods...",
+    "myMods": "MIS MODS",
+    "previous": "ANTERIOR",
+    "next": "SIGUIENTE",
+    "page": "Página",
+    "of": "de",
+    "modalTitle": "MIS MODS",
+    "noModsFound": "No se encontraron mods",
+    "noModsFoundDesc": "Intenta ajustar tu búsqueda",
+    "noModsInstalled": "No hay mods instalados",
+    "noModsInstalledDesc": "Añade mods desde CurseForge o importa archivos locales",
+    "view": "VER",
+    "install": "INSTALAR",
+    "installed": "INSTALADO",
+    "enable": "ACTIVAR",
+    "disable": "DESACTIVAR",
+    "active": "ACTIVO",
+    "disabled": "DESACTIVADO",
+    "delete": "Eliminar mod",
+    "noDescription": "Sin descripción disponible",
+    "confirmDelete": "¿Estás seguro de que quieres eliminar \"{name}\"?",
+    "confirmDeleteDesc": "Esta acción no se puede deshacer.",
+    "confirmDeletion": "Confirmar eliminación"
+  },
+  "news": {
+    "title": "TODAS LAS NOTICIAS",
+    "readMore": "Leer más"
+  },
+  "chat": {
+    "title": "CHAT DE JUGADORES",
+    "pickColor": "Color",
+    "inputPlaceholder": "Escribe tu mensaje...",
+    "send": "Enviar",
+    "online": "en línea",
+    "charCounter": "{current}/{max}",
+    "secureChat": "Chat seguro - Los enlaces están censurados",
+    "joinChat": "Unirse al chat",
+    "chooseUsername": "Elige un nombre de usuario para unirte al chat de jugadores",
+    "username": "Nombre de usuario",
+    "usernamePlaceholder": "Ingresa tu nombre de usuario...",
+    "usernameHint": "3-20 caracteres, letras, números, - y _ solamente",
+    "joinButton": "Unirse al Chat",
+    "colorModal": {
+      "title": "Personalizar color del nombre",
+      "chooseSolid": "Elige un color sólido:",
+      "customColor": "Color personalizado:",
+      "preview": "Vista previa:",
+      "previewUsername": "Nombre de usuario",
+      "apply": "Aplicar color"
+    }
+  },
+  "settings": {
+    "title": "CONFIGURACIÓN",
+    "java": "Entorno Java",
+    "useCustomJava": "Usar ruta de Java personalizada",
+    "javaDescription": "Reemplaza el entorno Java incluido con tu propia instalación",
+    "javaPath": "Ruta del ejecutable Java",
+    "javaPathPlaceholder": "Selecciona la ruta de Java...",
+    "javaBrowse": "Examinar",
+    "javaHint": "Selecciona la carpeta de instalación de Java (compatible con Windows, Mac, Linux)",
+    "discord": "Integración con Discord",
+    "enableRPC": "Habilitar Discord Rich Presence",
+    "discordDescription": "Muestra tu actividad del launcher en Discord",
+    "game": "Opciones del juego",
+    "playerName": "Nombre del jugador",
+    "playerNamePlaceholder": "Ingresa tu nombre de jugador",
+    "playerNameHint": "Este nombre se usará en el juego (1-16 caracteres)",
+    "openGameLocation": "Abrir ubicación del juego",
+    "openGameLocationDesc": "Abre la carpeta de instalación del juego",
+    "account": "Gestión de UUID del jugador",
+    "currentUUID": "UUID actual",
+    "uuidPlaceholder": "Cargando UUID...",
+    "copyUUID": "Copiar UUID",
+    "regenerateUUID": "Regenerar UUID",
+    "uuidHint": "Tu identificador único de jugador para este nombre de usuario",
+    "manageUUIDs": "Gestionar todos los UUIDs",
+    "manageUUIDsDesc": "Ver y gestionar todos los UUIDs de jugadores",
+    "language": "Idioma",
+    "selectLanguage": "Seleccionar idioma",
+    "repairGame": "Reparar juego",
+    "reinstallGame": "Reinstalar archivos del juego (conserva los datos)",
+    "gpuPreference": "Preferencia de GPU",
+    "gpuHint": "Selecciona tu GPU preferida (Linux: afecta DRI_PRIME)",
+    "gpuAuto": "Automático",
+    "gpuIntegrated": "Integrada",
+    "gpuDedicated": "Dedicada",
+    "logs": "REGISTROS DEL SISTEMA",
+    "logsCopy": "Copiar",
+    "logsRefresh": "Actualizar",
+    "logsFolder": "Abrir Carpeta",
+    "logsLoading": "Cargando registros..."
+  },
+  "uuid": {
+    "modalTitle": "Gestión de UUID",
+    "currentUserUUID": "UUID del usuario actual",
+    "allPlayerUUIDs": "Todos los UUIDs de jugadores",
+    "generateNew": "Generar nuevo UUID",
+    "loadingUUIDs": "Cargando UUIDs...",
+    "setCustomUUID": "Establecer UUID personalizado",
+    "customPlaceholder": "Ingresa un UUID personalizado (formato: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)",
+    "setUUID": "Establecer UUID",
+    "warning": "Advertencia: Establecer un UUID personalizado cambiará tu identidad de jugador actual",
+    "copyTooltip": "Copiar UUID",
+    "regenerateTooltip": "Generar nuevo UUID"
+  },
+  "profiles": {
+    "modalTitle": "Gestionar perfiles",
+    "newProfilePlaceholder": "Nombre del nuevo perfil",
+    "createProfile": "Crear perfil"
+  },
+  "discord": {
+    "notificationText": "¡Únete a nuestra comunidad de Discord!",
+    "joinButton": "Unirse a Discord"
+  },
+  "skins": {
+    "title": "Aspectos",
+    "comingSoon": "Personalización de aspectos próximamente..."
+  },
+  "common": {
+    "confirm": "Confirmar",
+    "cancel": "Cancelar",
+    "save": "Guardar",
+    "close": "Cerrar",
+    "delete": "Eliminar",
+    "edit": "Editar",
+    "loading": "Cargando...",
+    "apply": "Aplicar"
+  },
+  "notifications": {
+    "gameDataNotFound": "Error: No se encontraron datos del juego",
+    "gameUpdatedSuccess": "¡Juego actualizado con éxito! 🎉",
+    "updateFailed": "Actualización fallida: {error}",
+    "updateError": "Error de actualización: {error}",
+    "discordEnabled": "Discord Rich Presence habilitado",
+    "discordDisabled": "Discord Rich Presence deshabilitado",
+    "discordSaveFailed": "Error al guardar la configuración de Discord",
+    "playerNameRequired": "Por favor ingresa un nombre de jugador válido",
+    "playerNameSaved": "Nombre de jugador guardado con éxito",
+    "playerNameSaveFailed": "Error al guardar el nombre de jugador",
+    "uuidCopied": "¡UUID copiado al portapapeles!",
+    "uuidCopyFailed": "Error al copiar UUID",
+    "uuidRegenNotAvailable": "Regeneración de UUID no disponible",
+    "uuidRegenFailed": "Error al regenerar UUID",
+    "uuidGenerated": "¡Nuevo UUID generado con éxito!",
+    "uuidGeneratedShort": "¡Nuevo UUID generado!",
+    "uuidGenerateFailed": "Error al generar nuevo UUID",
+    "uuidRequired": "Por favor ingresa un UUID",
+    "uuidInvalidFormat": "Formato de UUID inválido",
+    "uuidSetFailed": "Error al establecer UUID personalizado",
+    "uuidSetSuccess": "¡UUID personalizado establecido con éxito!",
+    "uuidDeleteFailed": "Error al eliminar UUID",
+    "uuidDeleteSuccess": "¡UUID eliminado con éxito!",
+    "modsDownloading": "Descargando {name}...",
+    "modsTogglingMod": "Alternando mod...",
+    "modsDeletingMod": "Eliminando mod...",
+    "modsLoadingMods": "Cargando mods desde CurseForge...",
+    "modsInstalledSuccess": "¡{name} instalado con éxito! 🎉",
+    "modsDeletedSuccess": "{name} eliminado con éxito",
+    "modsDownloadFailed": "Error al descargar mod: {error}",
+    "modsToggleFailed": "Error al alternar mod: {error}",
+    "modsDeleteFailed": "Error al eliminar mod: {error}",
+    "modsModNotFound": "Información del mod no encontrada"
+  },
+  "confirm": {
+    "defaultTitle": "Confirmar acción",
+    "regenerateUuidTitle": "Generar nuevo UUID",
+    "regenerateUuidMessage": "¿Estás seguro de que quieres generar un nuevo UUID? Esto cambiará tu identidad de jugador.",
+    "regenerateUuidButton": "Generar",
+    "setCustomUuidTitle": "Establecer UUID personalizado",
+    "setCustomUuidMessage": "¿Estás seguro de que quieres establecer este UUID personalizado? Esto cambiará tu identidad de jugador.",
+    "setCustomUuidButton": "Establecer UUID",
+    "deleteUuidTitle": "Eliminar UUID",
+    "deleteUuidMessage": "¿Estás seguro de que quieres eliminar el UUID de \"{username}\"? Esta acción no se puede deshacer.",
+    "deleteUuidButton": "Eliminar",
+    "uninstallGameTitle": "Desinstalar juego",
+    "uninstallGameMessage": "¿Estás seguro de que quieres desinstalar Hytale? Se eliminarán todos los archivos del juego.",
+    "uninstallGameButton": "Desinstalar"
+  },
+  "progress": {
+    "initializing": "Inicializando...",
+    "downloading": "Descargando...",
+    "installing": "Instalando...",
+    "extracting": "Extrayendo...",
+    "verifying": "Verificando...",
+    "switchingProfile": "Cambiando perfil...",
+    "profileSwitched": "¡Perfil cambiado!",
+    "startingGame": "Iniciando juego...",
+    "launching": "INICIANDO...",
+    "uninstallingGame": "Desinstalando juego...",
+    "gameUninstalled": "¡Juego desinstalado con éxito!",
+    "uninstallFailed": "Desinstalación fallida: {error}",
+    "startingUpdate": "Iniciando actualización obligatoria del juego...",
+    "installationComplete": "¡Instalación completada con éxito!",
+    "installationFailed": "Instalación fallida: {error}",
+    "installingGameFiles": "Instalando archivos del juego...",
+    "installComplete": "¡Instalación completa!"
+  }
+}
diff --git a/GUI/locales/pt-BR.json b/GUI/locales/pt-BR.json
new file mode 100644
index 0000000..02c1dcf
--- /dev/null
+++ b/GUI/locales/pt-BR.json
@@ -0,0 +1,234 @@
+{
+  "nav": {
+    "play": "Jogar",
+    "mods": "Mods",
+    "news": "Notícias",
+    "chat": "Chat de Jogadores",
+    "settings": "Configurações",
+    "skins": "Aparências"
+  },
+  "header": {
+    "playersLabel": "Jogadores:",
+    "manageProfiles": "Gerenciar Perfis",
+    "defaultProfile": "Padrão",
+    "f2p": "FREE TO PLAY"
+  },
+  "install": {
+    "title": "LANÇADOR JOGO GRATUITO",
+    "playerName": "Nome do Jogador",
+    "playerNamePlaceholder": "Digite seu nome",
+    "customInstallation": "Instalação Personalizada",
+    "installationFolder": "Pasta de Instalação",
+    "pathPlaceholder": "Local padrão",
+    "browse": "Procurar",
+    "installButton": "INSTALAR HYTALE",
+    "installing": "INSTALANDO..."
+  },
+  "play": {
+    "ready": "PRONTO PARA JOGAR",
+    "subtitle": "Inicie Hytale e entre na aventura",
+    "playButton": "JOGAR HYTALE",
+    "latestNews": "ÚLTIMAS NOTÍCIAS",
+    "viewAll": "VER TUDO",
+    "checking": "VERIFICANDO...",
+    "play": "JOGAR"
+  },
+  "mods": {
+    "searchPlaceholder": "Pesquisar mods...",
+    "myMods": "MEUS MODS",
+    "previous": "ANTERIOR",
+    "next": "PRÓXIMO",
+    "page": "Página",
+    "of": "de",
+    "modalTitle": "MEUS MODS",
+    "noModsFound": "Nenhum mod encontrado",
+    "noModsFoundDesc": "Tente ajustar sua pesquisa",
+    "noModsInstalled": "Nenhum mod instalado",
+    "noModsInstalledDesc": "Adicione mods do CurseForge ou importe arquivos locais",
+    "view": "VER",
+    "install": "INSTALAR",
+    "installed": "INSTALADO",
+    "enable": "ATIVAR",
+    "disable": "DESATIVAR",
+    "active": "ATIVO",
+    "disabled": "DESATIVADO",
+    "delete": "Excluir mod",
+    "noDescription": "Nenhuma descrição disponível",
+    "confirmDelete": "Tem certeza de que deseja excluir \"{name}\"?",
+    "confirmDeleteDesc": "Esta ação não pode ser desfeita.",
+    "confirmDeletion": "Confirmar exclusão"
+  },
+  "news": {
+    "title": "TODAS AS NOTÍCIAS",
+    "readMore": "Leia mais"
+  },
+  "chat": {
+    "title": "CHAT DE JOGADORES",
+    "pickColor": "Cor",
+    "inputPlaceholder": "Digite sua mensagem...",
+    "send": "Enviar",
+    "online": "online",
+    "charCounter": "{current}/{max}",
+    "secureChat": "Chat seguro - Links são censurados",
+    "joinChat": "Entrar no chat",
+    "chooseUsername": "Escolha um nome de usuário para entrar no chat de jogadores",
+    "username": "Nome de usuário",
+    "usernamePlaceholder": "Digite seu nome de usuário...",
+    "usernameHint": "3-20 caracteres, letras, números, - e _ apenas",
+    "joinButton": "Entrar no Chat",
+    "colorModal": {
+      "title": "Personalizar cor do nome de usuário",
+      "chooseSolid": "Escolha uma cor sólida:",
+      "customColor": "Cor personalizada:",
+      "preview": "Visualização:",
+      "previewUsername": "Nome de usuário",
+      "apply": "Aplicar cor"
+    }
+  },
+  "settings": {
+    "title": "CONFIGURAÇÕES",
+    "java": "Tempo de execução Java",
+    "useCustomJava": "Usar caminho personalizado do Java",
+    "javaDescription": "Substitua o tempo de execução Java incluído pela sua própria instalação",
+    "javaPath": "Caminho do executável Java",
+    "javaPathPlaceholder": "Selecione o caminho do Java...",
+    "javaBrowse": "Procurar",
+    "javaHint": "Selecione a pasta de instalação do Java (suporta Windows, Mac, Linux)",
+    "discord": "Integração do Discord",
+    "enableRPC": "Ativar Discord Rich Presence",
+    "discordDescription": "Mostre sua atividade do lançador no Discord",
+    "game": "Opções do jogo",
+    "playerName": "Nome do jogador",
+    "playerNamePlaceholder": "Digite seu nome de jogador",
+    "playerNameHint": "Este nome será usado no jogo (1-16 caracteres)",
+    "openGameLocation": "Abrir local do jogo",
+    "openGameLocationDesc": "Abra a pasta de instalação do jogo",
+    "account": "Gerenciamento de UUID do jogador",
+    "currentUUID": "UUID atual",
+    "uuidPlaceholder": "Carregando UUID...",
+    "copyUUID": "Copiar UUID",
+    "regenerateUUID": "Regenerar UUID",
+    "uuidHint": "Seu identificador único de jogador para este nome de usuário",
+    "manageUUIDs": "Gerenciar todos os UUIDs",
+    "manageUUIDsDesc": "Ver e gerenciar todos os UUIDs de jogadores",
+    "language": "Idioma",
+    "selectLanguage": "Selecionar idioma",
+    "repairGame": "Reparar jogo",
+    "reinstallGame": "Reinstalar arquivos do jogo (mantém os dados)",
+    "gpuPreference": "Preferência de GPU",
+    "gpuHint": "Selecione sua GPU preferida (Linux: afeta o DRI_PRIME)",
+    "gpuAuto": "Automático",
+    "gpuIntegrated": "Integrada",
+    "gpuDedicated": "Dedicada",
+    "logs": "REGISTROS DO SISTEMA",
+    "logsCopy": "Copiar",
+    "logsRefresh": "Atualizar",
+    "logsFolder": "Abrir Pasta",
+    "logsLoading": "Carregando registros..."
+  },
+  "uuid": {
+    "modalTitle": "Gerenciamento de UUID",
+    "currentUserUUID": "UUID do usuário atual",
+    "allPlayerUUIDs": "Todos os UUIDs de jogadores",
+    "generateNew": "Gerar novo UUID",
+    "loadingUUIDs": "Carregando UUIDs...",
+    "setCustomUUID": "Definir UUID personalizado",
+    "customPlaceholder": "Digite um UUID personalizado (formato: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)",
+    "setUUID": "Definir UUID",
+    "warning": "Aviso: Definir um UUID personalizado alterará sua identidade de jogador atual",
+    "copyTooltip": "Copiar UUID",
+    "regenerateTooltip": "Gerar novo UUID"
+  },
+  "profiles": {
+    "modalTitle": "Gerenciar perfis",
+    "newProfilePlaceholder": "Nome do novo perfil",
+    "createProfile": "Criar perfil"
+  },
+  "discord": {
+    "notificationText": "Junte-se à nossa comunidade do Discord!",
+    "joinButton": "Entrar no Discord"
+  },
+  "skins": {
+    "title": "Aparências",
+    "comingSoon": "Personalização de aparências em breve..."
+  },
+  "common": {
+    "confirm": "Confirmar",
+    "cancel": "Cancelar",
+    "save": "Salvar",
+    "close": "Fechar",
+    "delete": "Excluir",
+    "edit": "Editar",
+    "loading": "Carregando...",
+    "apply": "Aplicar"
+  },
+  "notifications": {
+    "gameDataNotFound": "Erro: Dados do jogo não encontrados",
+    "gameUpdatedSuccess": "Jogo atualizado com sucesso! 🎉",
+    "updateFailed": "Falha na atualização: {error}",
+    "updateError": "Erro de atualização: {error}",
+    "discordEnabled": "Discord Rich Presence ativado",
+    "discordDisabled": "Discord Rich Presence desativado",
+    "discordSaveFailed": "Falha ao salvar configuração do Discord",
+    "playerNameRequired": "Por favor, digite um nome de jogador válido",
+    "playerNameSaved": "Nome do jogador salvo com sucesso",
+    "playerNameSaveFailed": "Falha ao salvar o nome do jogador",
+    "uuidCopied": "UUID copiado para a área de transferência!",
+    "uuidCopyFailed": "Falha ao copiar UUID",
+    "uuidRegenNotAvailable": "Regeneração de UUID não disponível",
+    "uuidRegenFailed": "Falha ao regenerar UUID",
+    "uuidGenerated": "Novo UUID gerado com sucesso!",
+    "uuidGeneratedShort": "Novo UUID gerado!",
+    "uuidGenerateFailed": "Falha ao gerar novo UUID",
+    "uuidRequired": "Por favor, digite um UUID",
+    "uuidInvalidFormat": "Formato de UUID inválido",
+    "uuidSetFailed": "Falha ao definir UUID personalizado",
+    "uuidSetSuccess": "UUID personalizado definido com sucesso!",
+    "uuidDeleteFailed": "Falha ao excluir UUID",
+    "uuidDeleteSuccess": "UUID excluído com sucesso!",
+    "modsDownloading": "Baixando {name}...",
+    "modsTogglingMod": "Alternando mod...",
+    "modsDeletingMod": "Excluindo mod...",
+    "modsLoadingMods": "Carregando mods do CurseForge...",
+    "modsInstalledSuccess": "{name} instalado com sucesso! 🎉",
+    "modsDeletedSuccess": "{name} excluído com sucesso",
+    "modsDownloadFailed": "Falha ao baixar mod: {error}",
+    "modsToggleFailed": "Falha ao alternar mod: {error}",
+    "modsDeleteFailed": "Falha ao excluir mod: {error}",
+    "modsModNotFound": "Informações do mod não encontradas"
+  },
+  "confirm": {
+    "defaultTitle": "Confirmar ação",
+    "regenerateUuidTitle": "Gerar novo UUID",
+    "regenerateUuidMessage": "Tem certeza de que deseja gerar um novo UUID? Isso alterará sua identidade de jogador.",
+    "regenerateUuidButton": "Gerar",
+    "setCustomUuidTitle": "Definir UUID personalizado",
+    "setCustomUuidMessage": "Tem certeza de que deseja definir este UUID personalizado? Isso alterará sua identidade de jogador.",
+    "setCustomUuidButton": "Definir UUID",
+    "deleteUuidTitle": "Excluir UUID",
+    "deleteUuidMessage": "Tem certeza de que deseja excluir o UUID de \"{username}\"? Esta ação não pode ser desfeita.",
+    "deleteUuidButton": "Excluir",
+    "uninstallGameTitle": "Desinstalar jogo",
+    "uninstallGameMessage": "Tem certeza de que deseja desinstalar Hytale? Todos os arquivos do jogo serão excluídos.",
+    "uninstallGameButton": "Desinstalar"
+  },
+  "progress": {
+    "initializing": "Inicializando...",
+    "downloading": "Baixando...",
+    "installing": "Instalando...",
+    "extracting": "Extraindo...",
+    "verifying": "Verificando...",
+    "switchingProfile": "Alternando perfil...",
+    "profileSwitched": "Perfil alternado!",
+    "startingGame": "Iniciando jogo...",
+    "launching": "INICIANDO...",
+    "uninstallingGame": "Desinstalando jogo...",
+    "gameUninstalled": "Jogo desinstalado com sucesso!",
+    "uninstallFailed": "Falha na desinstalação: {error}",
+    "startingUpdate": "Iniciando atualização obrigatória do jogo...",
+    "installationComplete": "Instalação concluída com sucesso!",
+    "installationFailed": "Falha na instalação: {error}",
+    "installingGameFiles": "Instalando arquivos do jogo...",
+    "installComplete": "Instalação concluída!"
+  }
+}
diff --git a/GUI/style.css b/GUI/style.css
index b14342f..f1fc2c4 100644
--- a/GUI/style.css
+++ b/GUI/style.css
@@ -4033,6 +4033,17 @@ body {
     cursor: not-allowed;
 }
 
+/* Language selector styling */
+select.settings-input {
+    cursor: pointer;
+}
+
+select.settings-input option {
+    background: #1a1a1a;
+    color: white;
+    padding: 0.5rem;
+}
+
 .settings-button-group {
     margin-bottom: 1rem;
 }
diff --git a/README.md b/README.md
index 0ea188b..2f48819 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,9 @@ See [BUILD.md](BUILD.md) for comprehensive build instructions.
 
 ## 📋 Changelog
 
+### 🆕 v2.0.ba *(Minor Update: Performance & Utilities)*  
+[TODO] add features list here
+
 ### 🆕 v2.0.2a *(Minor Update)*  
 - 🧑‍🚀 **Profiles System** — Added proper profile management: create, switch, and delete profiles. Each profile now has its own **isolated mod list**.  
 - 🔒 **Mod Isolation** — Fixed ModManager so mods are **strictly scoped to the active profile**. Browsing and installing now only affects the selected profile.  
diff --git a/backend/core/config.js b/backend/core/config.js
index c5f2d1b..23332a8 100644
--- a/backend/core/config.js
+++ b/backend/core/config.js
@@ -147,6 +147,15 @@ function loadDiscordRPC() {
   return config.discordRPC !== undefined ? config.discordRPC : true;
 }
 
+function saveLanguage(language) {
+  saveConfig({ language: language || 'en' });
+}
+
+function loadLanguage() {
+  const config = loadConfig();
+  return config.language || 'en';
+}
+
 function saveModsToConfig(mods) {
   try {
     const config = loadConfig();
@@ -302,6 +311,8 @@ module.exports = {
   loadInstallPath,
   saveDiscordRPC,
   loadDiscordRPC,
+  saveLanguage,
+  loadLanguage,
   saveModsToConfig,
   loadModsFromConfig,
   isFirstLaunch,
diff --git a/backend/launcher.js b/backend/launcher.js
index c6c2f38..cadee5e 100644
--- a/backend/launcher.js
+++ b/backend/launcher.js
@@ -15,6 +15,8 @@ const {
   loadInstallPath,
   saveDiscordRPC,
   loadDiscordRPC,
+  saveLanguage,
+  loadLanguage,
   saveModsToConfig,
   loadModsFromConfig,
   getUuidForUser,
@@ -118,6 +120,10 @@ module.exports = {
   saveDiscordRPC,
   loadDiscordRPC,
   
+  // Language functions
+  saveLanguage,
+  loadLanguage,
+  
   // GPU Preference functions
   saveGpuPreference,
   loadGpuPreference,
diff --git a/main.js b/main.js
index b529f1d..b7e639a 100644
--- a/main.js
+++ b/main.js
@@ -1,7 +1,7 @@
 const { app, BrowserWindow, ipcMain, dialog, shell } = require('electron');
 const path = require('path');
 const fs = require('fs');
-const { launchGame, launchGameWithVersionCheck, installGame, saveUsername, loadUsername, saveChatUsername, loadChatUsername, saveChatColor, loadChatColor, saveJavaPath, loadJavaPath, saveInstallPath, loadInstallPath, saveDiscordRPC, loadDiscordRPC, isGameInstalled, uninstallGame, repairGame, getHytaleNews, handleFirstLaunchCheck, proposeGameUpdate, markAsLaunched } = require('./backend/launcher');
+const { launchGame, launchGameWithVersionCheck, installGame, saveUsername, loadUsername, saveChatUsername, loadChatUsername, saveChatColor, loadChatColor, saveJavaPath, loadJavaPath, saveInstallPath, loadInstallPath, saveDiscordRPC, loadDiscordRPC, saveLanguage, loadLanguage, isGameInstalled, uninstallGame, repairGame, getHytaleNews, handleFirstLaunchCheck, proposeGameUpdate, markAsLaunched } = require('./backend/launcher');
 const UpdateManager = require('./backend/updateManager');
 const logger = require('./backend/logger');
 const profileManager = require('./backend/managers/profileManager');
@@ -405,6 +405,15 @@ ipcMain.handle('load-discord-rpc', () => {
   return loadDiscordRPC();
 });
 
+ipcMain.handle('save-language', (event, language) => {
+  saveLanguage(language);
+  return { success: true };
+});
+
+ipcMain.handle('load-language', () => {
+  return loadLanguage();
+});
+
 ipcMain.handle('select-install-path', async () => {
   const result = await dialog.showOpenDialog(mainWindow, {
     properties: ['openDirectory'],
diff --git a/preload.js b/preload.js
index 03c6947..acbdccc 100644
--- a/preload.js
+++ b/preload.js
@@ -17,6 +17,8 @@ contextBridge.exposeInMainWorld('electronAPI', {
   loadInstallPath: () => ipcRenderer.invoke('load-install-path'),
   saveDiscordRPC: (enabled) => ipcRenderer.invoke('save-discord-rpc', enabled),
   loadDiscordRPC: () => ipcRenderer.invoke('load-discord-rpc'),
+  saveLanguage: (language) => ipcRenderer.invoke('save-language', language),
+  loadLanguage: () => ipcRenderer.invoke('load-language'),
   selectInstallPath: () => ipcRenderer.invoke('select-install-path'),
   browseJavaPath: () => ipcRenderer.invoke('browse-java-path'),
   isGameInstalled: () => ipcRenderer.invoke('is-game-installed'),