diff --git a/.gitignore b/.gitignore
index 0487ba1..b00458e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /pokemon_quiz/images/gen*
 /ba_quiz
 gronkh_games/json/get_playlists.py
+CLAUDE.md
diff --git a/index.html b/index.html
index a31dfe1..dcb69bb 100644
--- a/index.html
+++ b/index.html
@@ -236,6 +236,10 @@
             <h2 class="tool-title">Kemono Friends Logo Generator</h2>
             <p class="tool-description">Generiere Logos im Kemono Friends Stil</p>
         </a>
+        <a href="https://tools.ponywave.de/lights_out" class="tool-bubble">
+            <h2 class="tool-title">Lights Out</h2>
+            <p class="tool-description">Klassisches Puzzle - Schalte alle Lichter aus!</p>
+        </a>
         <a href="https://tools.ponywave.de/minesweeper/" class="tool-bubble">
             <h2 class="tool-title">Minesweeper</h2>
             <p class="tool-description">Klassisches Minesweeper mit verschiedenen Schwierigkeitsgraden.</p>
diff --git a/lights_out/index.html b/lights_out/index.html
new file mode 100644
index 0000000..51b3c79
--- /dev/null
+++ b/lights_out/index.html
@@ -0,0 +1,756 @@
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Lights Out | PonyWave Tools</title>
+
+    <!-- Open Graph Meta Tags -->
+    <meta property="og:title" content="Lights Out | PonyWave Tools">
+    <meta property="og:description" content="Klassisches Lights Out Puzzle - Schalte alle Lichter aus!">
+    <meta property="og:type" content="website">
+    <meta property="og:url" content="https://tools.ponywave.de/lights_out">
+    <meta property="og:image" content="https://tools.ponywave.de/header.png">
+
+    <!-- Favicons -->
+    <link rel="icon" type="image/png" href="https://tools.ponywave.de/favicon.png">
+    <link rel="apple-touch-icon" href="https://tools.ponywave.de/favicon.png">
+
+    <!-- Umami Tracking -->
+    <script defer src="https://stats.ponywave.de/script"
+        data-website-id="9ef713d2-adb9-4906-9df5-708d8a8b9131"
+        data-tag="lights_out"></script>
+
+    <style>
+        /* CSS Variables für Theme-System */
+        :root {
+            --primary-color: #7F006E;
+            --secondary-color: #FF7FED;
+            --bg-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
+            --text-color: #2c3e50;
+            --cell-size: 60px;
+            --cell-bg-off: #333333;
+            --cell-bg-on: #FFD700;
+            --glow-color: rgba(255, 215, 0, 0.8);
+            --cell-border: #555555;
+            --game-bg: rgba(255, 255, 255, 0.95);
+            --shadow-color: rgba(0, 0, 0, 0.1);
+            --footer-color: rgba(255, 255, 255, 0.8);
+            --button-bg: #f0f0f0;
+            --button-hover: #e0e0e0;
+            --button-active: var(--primary-color);
+            --modal-bg: rgba(255, 255, 255, 0.98);
+        }
+
+        .dark-mode {
+            --bg-gradient: linear-gradient(135deg, #4A0040 0%, #CC65B5 100%);
+            --text-color: #ffffff;
+            --cell-bg-off: #2a2a2a;
+            --cell-bg-on: #FFA500;
+            --glow-color: rgba(255, 165, 0, 0.8);
+            --cell-border: #444444;
+            --game-bg: rgba(45, 45, 45, 0.95);
+            --shadow-color: rgba(0, 0, 0, 0.3);
+            --footer-color: rgba(0, 0, 0, 0.8);
+            --button-bg: #555555;
+            --button-hover: #666666;
+            --modal-bg: rgba(45, 45, 45, 0.98);
+        }
+
+        /* Body & Layout */
+        * {
+            box-sizing: border-box;
+            margin: 0;
+            padding: 0;
+        }
+
+        body {
+            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+            background-image: var(--bg-gradient);
+            background-attachment: fixed;
+            color: var(--text-color);
+            min-height: 100vh;
+            padding: 20px 20px 80px;
+            text-align: center;
+            transition: background-image 0.3s ease;
+        }
+
+        /* Theme Toggle Button */
+        .theme-toggle {
+            position: fixed;
+            top: 20px;
+            right: 20px;
+            background: var(--button-bg);
+            color: var(--text-color);
+            border: none;
+            border-radius: 50%;
+            width: 50px;
+            height: 50px;
+            font-size: 1.5em;
+            cursor: pointer;
+            box-shadow: 0 2px 10px var(--shadow-color);
+            transition: all 0.3s ease;
+            z-index: 100;
+        }
+
+        .theme-toggle:hover {
+            transform: scale(1.1) rotate(15deg);
+            box-shadow: 0 4px 15px var(--shadow-color);
+        }
+
+        /* Titel */
+        h1 {
+            margin: 20px 0 30px;
+            font-size: 2.5em;
+            text-shadow: 2px 2px 4px var(--shadow-color);
+        }
+
+        /* Game Container */
+        .game-container {
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            margin: 0 auto;
+            max-width: 800px;
+            background: var(--game-bg);
+            padding: 30px;
+            border-radius: 20px;
+            box-shadow: 0 8px 20px var(--shadow-color);
+            backdrop-filter: blur(10px);
+        }
+
+        /* Schwierigkeitsauswahl */
+        .difficulty {
+            display: flex;
+            gap: 10px;
+            flex-wrap: wrap;
+            justify-content: center;
+            margin-bottom: 20px;
+        }
+
+        .difficulty button {
+            padding: 10px 15px;
+            background: var(--button-bg);
+            color: var(--text-color);
+            border: 2px solid transparent;
+            border-radius: 8px;
+            cursor: pointer;
+            font-size: 0.9em;
+            font-weight: bold;
+            transition: all 0.3s ease;
+        }
+
+        .difficulty button:hover {
+            background: var(--button-hover);
+            transform: translateY(-2px);
+            box-shadow: 0 4px 8px var(--shadow-color);
+        }
+
+        .difficulty button.active {
+            background: var(--button-active);
+            color: white;
+            border-color: var(--secondary-color);
+        }
+
+        /* Game Header */
+        .game-header {
+            display: flex;
+            gap: 15px;
+            flex-wrap: wrap;
+            justify-content: center;
+            align-items: center;
+            margin-bottom: 20px;
+            width: 100%;
+        }
+
+        .moves-counter {
+            font-size: 1.3em;
+            font-weight: bold;
+            padding: 10px 20px;
+            background: var(--button-bg);
+            border-radius: 8px;
+        }
+
+        .btn {
+            padding: 10px 20px;
+            background: var(--button-bg);
+            color: var(--text-color);
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            font-size: 1em;
+            font-weight: bold;
+            transition: all 0.3s ease;
+        }
+
+        .btn:hover {
+            background: var(--button-hover);
+            transform: translateY(-2px);
+            box-shadow: 0 4px 8px var(--shadow-color);
+        }
+
+        .btn:active {
+            transform: translateY(0);
+        }
+
+        .btn:disabled {
+            opacity: 0.5;
+            cursor: not-allowed;
+            transform: none;
+        }
+
+        /* Grid */
+        .grid {
+            display: grid;
+            gap: 4px;
+            background: var(--cell-border);
+            border: 3px solid var(--cell-border);
+            border-radius: 10px;
+            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
+            margin: 20px auto;
+            user-select: none;
+            -webkit-user-select: none;
+            touch-action: manipulation;
+            -webkit-tap-highlight-color: transparent;
+        }
+
+        /* Cells */
+        .cell {
+            width: var(--cell-size);
+            height: var(--cell-size);
+            background: var(--cell-bg-off);
+            border: 2px solid var(--cell-border);
+            cursor: pointer;
+            transition: all 0.3s ease;
+            border-radius: 8px;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            position: relative;
+        }
+
+        .cell.on {
+            background: var(--cell-bg-on);
+            box-shadow:
+                0 0 20px var(--glow-color),
+                0 0 40px var(--glow-color) inset,
+                0 0 10px rgba(255, 255, 255, 0.5) inset;
+        }
+
+        .cell:hover:not(.animating) {
+            transform: scale(1.05);
+            border-color: var(--secondary-color);
+            z-index: 10;
+        }
+
+        .cell.animating {
+            animation: toggle-animation 0.3s ease;
+        }
+
+        @keyframes toggle-animation {
+            0%, 100% { transform: scale(1); }
+            50% { transform: scale(1.15) rotate(5deg); }
+        }
+
+        /* Modal System */
+        .modal-overlay {
+            position: fixed;
+            top: 0;
+            left: 0;
+            right: 0;
+            bottom: 0;
+            background-color: rgba(0, 0, 0, 0.75);
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            z-index: 1000;
+            opacity: 0;
+            pointer-events: none;
+            transition: opacity 0.3s ease;
+        }
+
+        .modal-overlay.active {
+            opacity: 1;
+            pointer-events: all;
+        }
+
+        .modal {
+            background: var(--modal-bg);
+            padding: 30px;
+            border-radius: 15px;
+            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
+            max-width: 500px;
+            width: 90%;
+            position: relative;
+            transform: translateY(-30px);
+            transition: transform 0.3s ease;
+        }
+
+        .modal-overlay.active .modal {
+            transform: translateY(0);
+        }
+
+        .modal h2 {
+            margin-bottom: 15px;
+            font-size: 2em;
+        }
+
+        .modal p {
+            margin: 10px 0;
+            line-height: 1.6;
+        }
+
+        .modal ul {
+            text-align: left;
+            margin: 15px 0;
+            padding-left: 25px;
+        }
+
+        .modal li {
+            margin: 8px 0;
+        }
+
+        .modal .btn {
+            margin: 10px 5px 0;
+        }
+
+        .close-modal {
+            position: absolute;
+            top: 15px;
+            right: 15px;
+            background: none;
+            border: none;
+            font-size: 2em;
+            cursor: pointer;
+            color: var(--text-color);
+            width: 40px;
+            height: 40px;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            border-radius: 50%;
+            transition: all 0.3s ease;
+        }
+
+        .close-modal:hover {
+            background: var(--button-hover);
+            transform: rotate(90deg);
+        }
+
+        /* Footer */
+        footer {
+            position: fixed;
+            bottom: 0;
+            left: 0;
+            right: 0;
+            background-color: var(--footer-color);
+            color: var(--text-color);
+            padding: 15px;
+            text-align: center;
+            backdrop-filter: blur(10px);
+        }
+
+        footer a {
+            color: var(--text-color);
+            text-decoration: none;
+            font-weight: bold;
+            transition: color 0.3s ease;
+        }
+
+        footer a:hover {
+            color: var(--primary-color);
+        }
+
+        /* Responsive Design */
+        @media (max-width: 600px) {
+            :root {
+                --cell-size: 50px;
+            }
+
+            h1 {
+                font-size: 2em;
+            }
+
+            .game-container {
+                padding: 20px 15px;
+            }
+
+            .difficulty button {
+                padding: 8px 12px;
+                font-size: 0.85em;
+            }
+
+            .moves-counter {
+                font-size: 1.1em;
+                padding: 8px 15px;
+            }
+
+            .btn {
+                padding: 8px 15px;
+                font-size: 0.9em;
+            }
+
+            .modal {
+                padding: 20px;
+            }
+
+            .modal h2 {
+                font-size: 1.5em;
+            }
+        }
+
+        @media (max-width: 400px) {
+            :root {
+                --cell-size: 40px;
+            }
+
+            h1 {
+                font-size: 1.5em;
+                margin: 10px 0 20px;
+            }
+
+            .difficulty {
+                gap: 5px;
+            }
+
+            .difficulty button {
+                padding: 6px 10px;
+                font-size: 0.8em;
+            }
+        }
+    </style>
+</head>
+<body>
+    <!-- Theme Toggle Button -->
+    <button class="theme-toggle" onclick="toggleTheme()">🌙</button>
+
+    <!-- Titel -->
+    <h1>💡 Lights Out 💡</h1>
+
+    <!-- Game Container -->
+    <div class="game-container">
+        <!-- Schwierigkeitsauswahl -->
+        <div class="difficulty">
+            <button data-size="3" onclick="changeGridSize(3)">3×3</button>
+            <button data-size="4" onclick="changeGridSize(4)">4×4</button>
+            <button data-size="5" class="active" onclick="changeGridSize(5)">5×5 (Standard)</button>
+            <button data-size="6" onclick="changeGridSize(6)">6×6</button>
+            <button data-size="7" onclick="changeGridSize(7)">7×7</button>
+        </div>
+
+        <!-- Game Header -->
+        <div class="game-header">
+            <div class="moves-counter">
+                Züge: <span id="moves">0</span>
+            </div>
+            <button class="btn" onclick="neuesSpiel()">🔄 Neues Spiel</button>
+            <button class="btn" id="undoBtn" onclick="undo()">↶ Undo</button>
+            <button class="btn" onclick="zeigeAnleitung()">❓ Anleitung</button>
+        </div>
+
+        <!-- Grid (dynamisch generiert) -->
+        <div class="grid" id="grid"></div>
+    </div>
+
+    <!-- Anleitung Modal -->
+    <div id="instructionModal" class="modal-overlay">
+        <div class="modal">
+            <button class="close-modal" onclick="schliesseModal('instructionModal')">&times;</button>
+            <h2>📖 Spielanleitung</h2>
+            <p><strong>Ziel:</strong> Schalte alle Lichter aus!</p>
+            <p><strong>Regeln:</strong></p>
+            <ul>
+                <li>Klicke auf eine Zelle, um sie und ihre 4 orthogonal angrenzenden Nachbarn umzuschalten (oben, unten, links, rechts)</li>
+                <li>Eingeschaltet → Ausgeschaltet, Ausgeschaltet → Eingeschaltet</li>
+                <li>Versuche, alle Lichter mit möglichst wenigen Zügen auszuschalten</li>
+                <li>Du kannst Züge mit dem Undo-Button rückgängig machen</li>
+            </ul>
+            <p><strong>Tipp:</strong> Die Reihenfolge der Klicks ist egal! Jede Zelle muss maximal einmal geklickt werden.</p>
+            <button class="btn" onclick="schliesseModal('instructionModal')">Verstanden!</button>
+        </div>
+    </div>
+
+    <!-- Gewinn-Modal -->
+    <div id="winModal" class="modal-overlay">
+        <div class="modal">
+            <h2>🎉 Gewonnen! 🎉</h2>
+            <p>Alle Lichter sind aus!</p>
+            <p style="font-size: 1.3em; font-weight: bold;">Züge: <span id="finalMoves">0</span></p>
+            <p id="bestScore" style="font-size: 1.1em; color: var(--primary-color);">
+                Bester Score (<span id="gridSizeLabel">5×5</span>): <span id="bestMoves">--</span> Züge
+            </p>
+            <p id="newRecord" style="display: none; font-weight: bold; color: #4CAF50; font-size: 1.2em;">
+                🏆 Neuer Rekord! 🏆
+            </p>
+            <button class="btn" onclick="neuesSpiel()">🔄 Neues Spiel</button>
+            <button class="btn" onclick="schliesseModal('winModal')">Schließen</button>
+        </div>
+    </div>
+
+    <!-- Footer -->
+    <footer>
+        <a href="https://tools.ponywave.de/">← Zurück zur Startseite</a> |
+        © <span id="currentYear"></span> <a href="https://akamaru.de" target="_blank">Akamaru</a>
+    </footer>
+
+    <script>
+        // ===== STATE MANAGEMENT =====
+        let gridSize = 5;           // Aktuelle Grid-Größe (3-7)
+        let moves = 0;              // Aktuelle Züge
+        let grid = [];              // 2D-Array: grid[row][col] = true/false (on/off)
+        let gameWon = false;        // Gewinn-Flag
+        let bestScores = {};        // localStorage: { '3': 15, '5': 22, ... }
+        let moveHistory = [];       // Stack für Undo: [[row, col], ...]
+
+        // ===== INITIALISIERUNG =====
+        function init() {
+            initTheme();
+            loadBestScores();
+            neuesSpiel();
+            document.getElementById('currentYear').textContent = new Date().getFullYear();
+        }
+
+        // ===== GRID-FUNKTIONEN =====
+        function initGrid() {
+            // Starte mit leerem Grid (alle Lichter aus)
+            grid = Array(gridSize).fill(null).map(() => Array(gridSize).fill(false));
+
+            // Rückwärts-Simulation: Zufällige Klicks für lösbare Konfiguration
+            const numRandomClicks = Math.floor(gridSize * gridSize * 0.6);
+            const clickedCells = new Set();
+
+            for (let i = 0; i < numRandomClicks; i++) {
+                const row = Math.floor(Math.random() * gridSize);
+                const col = Math.floor(Math.random() * gridSize);
+                const key = `${row},${col}`;
+
+                // Vermeide doppelte Klicks (da sie sich aufheben würden)
+                if (!clickedCells.has(key)) {
+                    clickedCells.add(key);
+                    toggleCellAndNeighbors(row, col, true); // silent=true
+                }
+            }
+        }
+
+        function toggleCellAndNeighbors(row, col, silent = false) {
+            // Hauptzelle togglen
+            grid[row][col] = !grid[row][col];
+
+            // 4 orthogonale Nachbarn (oben, unten, links, rechts)
+            const neighbors = [
+                [row - 1, col],     // Oben
+                [row + 1, col],     // Unten
+                [row, col - 1],     // Links
+                [row, col + 1]      // Rechts
+            ];
+
+            neighbors.forEach(([r, c]) => {
+                // Nur wenn innerhalb des Grids
+                if (r >= 0 && r < gridSize && c >= 0 && c < gridSize) {
+                    grid[r][c] = !grid[r][c];
+                }
+            });
+
+            if (!silent) {
+                moves++;
+                moveHistory.push([row, col]);
+                updateMovesDisplay();
+                updateUndoButton();
+                renderGrid();
+                checkWin();
+            }
+        }
+
+        function renderGrid() {
+            const gridElement = document.getElementById('grid');
+            gridElement.innerHTML = '';
+            gridElement.style.gridTemplateColumns = `repeat(${gridSize}, var(--cell-size))`;
+
+            for (let row = 0; row < gridSize; row++) {
+                for (let col = 0; col < gridSize; col++) {
+                    const cell = document.createElement('div');
+                    cell.className = 'cell';
+                    cell.dataset.row = row;
+                    cell.dataset.col = col;
+
+                    if (grid[row][col]) {
+                        cell.classList.add('on');
+                    }
+
+                    // Event Listeners
+                    cell.addEventListener('click', () => handleCellClick(row, col));
+                    cell.addEventListener('touchstart', (e) => {
+                        e.preventDefault();
+                        handleCellClick(row, col);
+                    }, { passive: false });
+
+                    gridElement.appendChild(cell);
+                }
+            }
+        }
+
+        // ===== EVENT HANDLING =====
+        function handleCellClick(row, col) {
+            if (gameWon) return;
+
+            // Animation
+            const cellElement = document.querySelector(`.cell[data-row="${row}"][data-col="${col}"]`);
+            if (cellElement) {
+                cellElement.classList.add('animating');
+                setTimeout(() => cellElement.classList.remove('animating'), 300);
+            }
+
+            toggleCellAndNeighbors(row, col);
+        }
+
+        function undo() {
+            if (moveHistory.length === 0 || gameWon) return;
+
+            const [row, col] = moveHistory.pop();
+
+            // Toggle ohne Züge zu erhöhen (nur Grid-State zurücksetzen)
+            grid[row][col] = !grid[row][col];
+
+            const neighbors = [
+                [row - 1, col],
+                [row + 1, col],
+                [row, col - 1],
+                [row, col + 1]
+            ];
+
+            neighbors.forEach(([r, c]) => {
+                if (r >= 0 && r < gridSize && c >= 0 && c < gridSize) {
+                    grid[r][c] = !grid[r][c];
+                }
+            });
+
+            moves--;
+            updateMovesDisplay();
+            updateUndoButton();
+            renderGrid();
+        }
+
+        function changeGridSize(size) {
+            gridSize = size;
+
+            // Active-Button aktualisieren
+            document.querySelectorAll('.difficulty button').forEach(btn => {
+                btn.classList.toggle('active', parseInt(btn.dataset.size) === size);
+            });
+
+            // Zellengröße anpassen für große Grids
+            if (size >= 6) {
+                document.documentElement.style.setProperty('--cell-size', '50px');
+            } else if (size >= 5) {
+                document.documentElement.style.setProperty('--cell-size', '60px');
+            } else {
+                document.documentElement.style.setProperty('--cell-size', '70px');
+            }
+
+            neuesSpiel();
+        }
+
+        function neuesSpiel() {
+            moves = 0;
+            gameWon = false;
+            moveHistory = [];
+            schliesseModal('winModal');
+            updateMovesDisplay();
+            updateUndoButton();
+            initGrid();
+            renderGrid();
+        }
+
+        // ===== GEWINN-ERKENNUNG =====
+        function checkWin() {
+            const allOff = grid.every(row => row.every(cell => !cell));
+
+            if (allOff && !gameWon) {
+                gameWon = true;
+
+                // Bestscores aktualisieren
+                const isNewRecord = !bestScores[gridSize] || moves < bestScores[gridSize];
+                if (isNewRecord) {
+                    bestScores[gridSize] = moves;
+                    saveBestScores();
+                }
+
+                setTimeout(() => showWinModal(isNewRecord), 500);
+            }
+        }
+
+        function showWinModal(isNewRecord) {
+            document.getElementById('finalMoves').textContent = moves;
+            document.getElementById('gridSizeLabel').textContent = `${gridSize}×${gridSize}`;
+
+            const bestMoves = bestScores[gridSize];
+            document.getElementById('bestMoves').textContent = bestMoves || '--';
+
+            const newRecordElement = document.getElementById('newRecord');
+            newRecordElement.style.display = isNewRecord ? 'block' : 'none';
+
+            const modal = document.getElementById('winModal');
+            modal.classList.add('active');
+        }
+
+        // ===== UI-UPDATES =====
+        function updateMovesDisplay() {
+            document.getElementById('moves').textContent = moves;
+        }
+
+        function updateUndoButton() {
+            const undoBtn = document.getElementById('undoBtn');
+            undoBtn.disabled = moveHistory.length === 0 || gameWon;
+        }
+
+        // ===== MODAL-FUNKTIONEN =====
+        function zeigeAnleitung() {
+            document.getElementById('instructionModal').classList.add('active');
+        }
+
+        function schliesseModal(modalId) {
+            document.getElementById(modalId).classList.remove('active');
+        }
+
+        // Modal schließen bei Klick auf Overlay
+        document.querySelectorAll('.modal-overlay').forEach(overlay => {
+            overlay.addEventListener('click', (e) => {
+                if (e.target === overlay) {
+                    overlay.classList.remove('active');
+                }
+            });
+        });
+
+        // ===== LOCALSTORAGE =====
+        function loadBestScores() {
+            const saved = localStorage.getItem('lightsOutBestScores');
+            bestScores = saved ? JSON.parse(saved) : {};
+        }
+
+        function saveBestScores() {
+            localStorage.setItem('lightsOutBestScores', JSON.stringify(bestScores));
+        }
+
+        // ===== THEME TOGGLE =====
+        function toggleTheme() {
+            document.body.classList.toggle('dark-mode');
+            const btn = document.querySelector('.theme-toggle');
+            btn.textContent = document.body.classList.contains('dark-mode') ? '☀️' : '🌙';
+            localStorage.setItem('theme', document.body.classList.contains('dark-mode') ? 'dark' : 'light');
+        }
+
+        function initTheme() {
+            const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+            const savedTheme = localStorage.getItem('theme');
+
+            if (savedTheme === 'dark' || (!savedTheme && prefersDark)) {
+                document.body.classList.add('dark-mode');
+                document.querySelector('.theme-toggle').textContent = '☀️';
+            }
+        }
+
+        // ===== START =====
+        window.addEventListener('DOMContentLoaded', init);
+    </script>
+</body>
+</html>
diff --git a/sitemap.txt b/sitemap.txt
index 5ba7a14..3824af6 100644
--- a/sitemap.txt
+++ b/sitemap.txt
@@ -19,6 +19,7 @@ https://tools.ponywave.de/favorites_viewer
 https://tools.ponywave.de/flash_dl
 https://tools.ponywave.de/gronkh_games
 https://tools.ponywave.de/kemonogen
+https://tools.ponywave.de/lights_out
 https://tools.ponywave.de/minesweeper
 https://tools.ponywave.de/pinkie_timer
 https://tools.ponywave.de/pokemon_quiz
