DOOMBREAKER: Cryptrunner is a first-person tunnel shooter where you descend through the Crypt, slaying enemies with your Black Uzi, unlocking iron gates, and ultimately confronting the final boss. The game features persistent player progression: each victory increases your Level, boosting damage, speed, and max health permanently.

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##  CONTROLS

| Move Forward | W |

| Move Backward | S |

| Strafe Left | A |

| Strafe Right | D |

| Jump | Space |

| Aim / Look | Mouse |

| Shoot (full auto) | Hold Left Mouse Button |

| Zoom (aim down sights) | Hold Right Mouse Button |

| Return to Menu | ESC |

**Note:** Click on the game canvas to lock the cursor. Movement and aiming require pointer lock.

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> Slay all enemies in the zone to unlock the iron gate.

- Enemy Counter: (top center) shows how many remain.

- Gate Status*changes from 🔒 LOCKED → 🔓 OPEN when all enemies are defeated.

- Once unlocked, walk past the gate to automatically advance to the next zone.

- Gates are one-way — no backtracking.---

# PLAYER PROGRESSION (PERSISTENT)

Your Player Level is saved in your browser (IndexedDB) and persists between runs.

| Damage Multiplier | +7% |

| Movement Speed | +1.5 |

| Max Health | +10 HP |

| Enemy HP (scales with you) | +8% per level (keeps challenge high) |

## How to Level Up

- Complete a run: (defeat the Void Sovereign) → +1 Level.

- Your best run time is also saved permanently.

- Higher levels make you stronger, but enemies also gain HP to maintain tension.

### XP Bar

- The bar at the bottom of the screen fills during your run — a visual indicator of progression toward your next level (completing the run is what actually triggers the level-up).

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## ENEMIES

| **Crawler** | 95 | 16 | 50 | Fast, weak, first zone threat. |

| **Shambler** | 230 | 30 | 110 | Slower, tankier, appears from Zone 3+. |

| **Wraith** | 420 | 42 | 210 | Glowing core, high damage, from Zone 5+. |

| **Doom Knight** | 820 | 60 | 400 | Heavily armored, from Zone 7+. Also summoned by the Sovereign in Phase 3. |

| **Void Sovereign (Boss)** | 18,000+ (scales with level) | 145–260 | 50,000 | Three phases, ranged projectiles, homing salvos, ground slam. |

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## HEALTH PACKS

- Starting Health = `100 + (Level-1) × 10`

- Pickups: (green glowing cubes) drop randomly from slain enemies (~38% chance).

- Each pickup restores **15% of your maximum health**.

- Invincibility frame* (~0.7 seconds) after taking damage.

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## UZI WEAPON

| Damage per shot | 78 |

| Fire rate | ~22 shots/sec (45ms delay) |

| Spread | 0.19 rad |

| Range | 420 units |

| Muzzle flash | Visual + sound + brief screen shake |

## LICENSE

MIT