Three maps, six guns, one king, no exit.
Round-based 3D zombie survival across three maps that share a rulebook and nothing else: a pitch-black boiler-room bunker, a pastel cube dreamscape, and the alien planet Zrock. Board the windows, buy the guns, eat the cursed berries, find the easter eggs, and hold out against the Zombie King. Your score is the highest round you reached — nothing else counts.
A boiler room and the rooms behind it, lit by almost nothing. Fog density 0.085 and an ambient light of roughly six percent grey means the dark here is not atmosphere, it is the difficulty: you hear the horde reach the windows before you see it. No king spawns on NACHT.
The same survival loop rebuilt in pastel geometry, where the sightlines are long and the thing that kills you is misjudging a gap you can see perfectly well.
An alien planet, and the map where the game stops pretending it is a bunker sim. This is where the Ray Gun earns its slot.
Zombie health is 55 + (r−1)×26 + r^1.55×2, so it does not scale linearly — it bends upward and keeps bending. Speed rises 3.5% a round but hard-caps at 1.55×, which means late rounds are a wall of health rather than a wall of speed. The horde per round is capped at 60 spawns with at most 20 alive at once, so the pressure becomes attrition on your ammo rather than a crowd you cannot physically hold.
Only Shamblers appear on rounds 1. Runners enter at round 2, Brutes at round 5, Spitters at round 4 — each on a roll that widens as the rounds climb. A hunt round overrides all of it and sends nothing but Runners.
Six cursed berries drop from corpses. Five are straightforward buffs; PACK-A-BERRY upgrades the gun in your hands into its second, meaner name — the M1911 becomes the C-3000 MUSTANG, the OLYMPIA-Z becomes the HADES HANDSHAKE. Eating takes time you may not have, which is the cost.
Aiming here is a mouse delta read under pointer lock, and pointer lock does not exist on a handset — an on-screen D-pad would have moved you and aimed nothing. The game carries the touch rig instead: thumbstick left, drag-to-look right, FIRE in the corner, and real buttons for RELOAD, USE, KNIFE and EAT. Those four matter more than they look: all were keyboard-only, and without USE in particular the doors never open and the game is unfinishable on a phone. See docs/TOUCH-RIG.md.
Health and size are multipliers on the round's base; damage and points are flat.
| Type | HP × | Speed × | Size | Damage | Points | From round |
|---|---|---|---|---|---|---|
| Shambler | 1.00 | 1.00 | 1.00 | 16 | 60 | 1 |
| Runner | 0.55 | 2.35 | 0.92 | 12 | 60 | 2 |
| Spitter | 0.80 | 1.05 | 0.96 | 10 | 80 | 4 |
| BOSS: Brute | 2.90 | 0.72 | 1.38 | 30 | 100 | 5 |
Upgraded name is what PACK-A-BERRY turns it into.
| Gun | Upgraded | Damage | RPM | Mag | Reserve | Auto |
|---|---|---|---|---|---|---|
| M1911 | C-3000 MUSTANG | 32 | 330 | 8 | 64 | no |
| MP-Z40 | THE AFTERBURNER | 26 | 720 | 32 | 192 | yes |
| OLYMPIA-Z | HADES HANDSHAKE | 15 ×10 pellets | 78 | 2 | 38 | no |
| ZK-47 | THE REANIMATOR | 50 | 560 | 30 | 210 | yes |
| HOG-60 | SWINE FLU | 44 | 620 | 80 | 320 | yes |
| RAY GUN MK-Z | THE REVERSAL RAY | 240 + 2.6m splash | 170 | 20 | 160 | no |
| Berry | Effect |
|---|---|
| TOUGH BERRY | Thick skin |
| REVIVE BERRY | One free death |
| AMMO BERRY | Double reserves |
| JITTER BERRY | Faster trigger |
| SPRINT BERRY | Run forever-ish |
| PACK-A-BERRY | Upgrades the gun you are holding |