diff --git a/Prehistorik/audio.js b/Prehistorik/audio.js
new file mode 100644
index 0000000..4eac318
--- /dev/null
+++ b/Prehistorik/audio.js
@@ -0,0 +1,76 @@
+'use strict';
+
+let audioCtx = null;
+
+function getAudio() {
+  if (!audioCtx) audioCtx = new (window.AudioContext || window.webkitAudioContext)();
+  return audioCtx;
+}
+
+function beep(freq, freq2, dur, type = 'sine', vol = 0.3) {
+  try {
+    const ac = getAudio();
+    const o  = ac.createOscillator();
+    const g  = ac.createGain();
+    o.type = type;
+    o.connect(g); g.connect(ac.destination);
+    o.frequency.setValueAtTime(freq, ac.currentTime);
+    if (freq2 && freq2 !== freq) o.frequency.exponentialRampToValueAtTime(freq2, ac.currentTime + dur);
+    g.gain.setValueAtTime(vol, ac.currentTime);
+    g.gain.exponentialRampToValueAtTime(0.001, ac.currentTime + dur);
+    o.start(ac.currentTime);
+    o.stop(ac.currentTime + dur + 0.01);
+  } catch(e) {}
+}
+
+const SFX = {
+  jump:      () => beep(280, 560, 0.18, 'sine',     0.25),
+  attack:    () => beep(140, 70,  0.12, 'sawtooth', 0.30),
+  stomp:     () => { beep(200, 80, 0.1, 'square', 0.35); beep(400, 400, 0.08, 'sine', 0.2); },
+  hurt:      () => beep(180, 90,  0.28, 'square',   0.40),
+  die:       () => beep(380, 50,  0.80, 'square',   0.40),
+  collect:   () => beep(550, 880, 0.10, 'sine',     0.20),
+  heart:     () => { beep(660, 660, 0.06, 'sine', 0.2); setTimeout(() => beep(880, 880, 0.12, 'sine', 0.2), 70); },
+  killEnemy: () => beep(260, 100, 0.25, 'sawtooth', 0.28),
+  combo:     (n) => beep(440 + n * 40, 550 + n * 40, 0.08, 'sine', 0.18),
+  levelUp:   () => {
+    [523, 659, 784, 1047].forEach((f, i) =>
+      setTimeout(() => beep(f, f, i === 3 ? 0.25 : 0.08, 'sine', 0.28), i * 100)
+    );
+  },
+};
+
+// ─── Background Music ─────────────────────────────────────────────────────────
+let _musicTimer = null;
+let _musicStep  = 0;
+
+const MUSIC = {
+  menu:  { bpm: 112, notes: [392,0,523,0,659,523,392,330, 392,0,523,659,784,659,523,0] },
+  grass: { bpm: 132, notes: [523,0,659,0,784,659,523,0, 440,0,523,0,659,523,440,0] },
+  cave:  { bpm:  96, notes: [294,0,330,0,262,0,294,0, 220,0,247,0,262,0,220,0] },
+  ice:   { bpm: 108, notes: [440,0,494,523,587,0,523,494, 440,0,392,0,440,494,523,0] },
+};
+
+function startMusic(theme) {
+  stopMusic();
+  try { getAudio(); } catch(e) { return; }
+  const pat = MUSIC[theme] || MUSIC.menu;
+  const beatMs = (60000 / pat.bpm) / 2; // eighth-note duration
+  _musicStep = 0;
+
+  const tick = () => {
+    const freq = pat.notes[_musicStep % pat.notes.length];
+    if (freq > 0) {
+      beep(freq / 2, freq / 2, beatMs / 1000 * 0.75, 'square',   0.04);
+      if (_musicStep % 2 === 0) beep(freq, freq, beatMs / 1000 * 0.55, 'triangle', 0.05);
+    }
+    _musicStep++;
+    _musicTimer = setTimeout(tick, beatMs);
+  };
+  _musicTimer = setTimeout(tick, 0);
+}
+
+function stopMusic() {
+  if (_musicTimer) { clearTimeout(_musicTimer); _musicTimer = null; }
+  _musicStep = 0;
+}
diff --git a/Prehistorik/constants.js b/Prehistorik/constants.js
new file mode 100644
index 0000000..9505034
--- /dev/null
+++ b/Prehistorik/constants.js
@@ -0,0 +1,21 @@
+'use strict';
+
+// ─── Canvas ──────────────────────────────────────────────────────────────────
+const canvas = document.getElementById('gameCanvas');
+const ctx    = canvas.getContext('2d');
+const W = canvas.width;
+const H = canvas.height;
+
+// ─── Physics ─────────────────────────────────────────────────────────────────
+const GRAVITY       = 0.55;
+const MAX_FALL      = 16;
+const JUMP_POW      = -12.5;
+const WALK_SPD      = 4;
+const STOMP_BOUNCE  = -11;   // vy after successful stomp
+
+// ─── Gameplay ────────────────────────────────────────────────────────────────
+const ATTACK_FRAMES = 22;
+const INVINC_FRAMES = 100;
+const WORLD_H       = 600;
+const COMBO_TIMEOUT = 150;   // frames before combo resets
+const MAX_COMBO_MULT = 8;    // maximum score multiplier
diff --git a/Prehistorik/index.html b/Prehistorik/index.html
new file mode 100644
index 0000000..80ae393
--- /dev/null
+++ b/Prehistorik/index.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>PREHISTORIK - Stone Age Adventure</title>
+  <link rel="stylesheet" href="css/style.css">
+</head>
+<body>
+
+<div id="wrapper">
+  <canvas id="gameCanvas" width="800" height="500" tabindex="0"></canvas>
+  <div id="focus-overlay">🖱 CLICK TO FOCUS</div>
+  <div id="controls-hint">ARROWS/WASD=Move &nbsp; SPACE/W=Jump &nbsp; Z/X/CTRL=Attack &nbsp; ESC=Pause</div>
+</div>
+
+<!-- Порядок загрузки важен: каждый файл зависит от предыдущих -->
+<script src="js/constants.js"></script>  <!-- canvas, ctx, W, H, константы физики -->
+<script src="js/particles.js"></script>  <!-- система частиц -->
+<script src="js/input.js"></script>      <!-- keys, pressed(), justPressed(), grabFocus() -->
+<script src="js/audio.js"></script>      <!-- SFX, beep() -->
+<script src="js/draw.js"></script>       <!-- все функции рисования -->
+<script src="js/entities.js"></script>   <!-- Player, Raptor, Pterodactyl, Mammoth, Item, ScorePopup -->
+<script src="js/levels.js"></script>     <!-- LEVELS[] -->
+<script src="js/game.js"></script>       <!-- игровой цикл, старт -->
+
+</body>
+</html>
diff --git a/Prehistorik/style.css b/Prehistorik/style.css
new file mode 100644
index 0000000..25a3b97
--- /dev/null
+++ b/Prehistorik/style.css
@@ -0,0 +1,46 @@
+* { margin: 0; padding: 0; box-sizing: border-box; }
+
+body {
+  background: #000;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  min-height: 100vh;
+  font-family: monospace;
+  overflow: hidden;
+}
+
+#wrapper {
+  position: relative;
+  display: inline-block;
+}
+
+canvas {
+  display: block;
+  image-rendering: pixelated;
+  border: 3px solid #FFD700;
+  box-shadow: 0 0 40px rgba(255, 165, 0, 0.4);
+  outline: none;
+  cursor: default;
+}
+
+#focus-overlay {
+  display: none;
+  position: absolute;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.72);
+  color: #FFD700;
+  font: bold 22px monospace;
+  text-align: center;
+  padding-top: 210px;
+  letter-spacing: 1px;
+  pointer-events: none;
+}
+
+#controls-hint {
+  color: #666;
+  font-size: 12px;
+  text-align: center;
+  margin-top: 6px;
+  letter-spacing: 1px;
+}