The undead never stop coming… but neither do you!
Mow down relentless hordes of zombies with wild weapons, devastating skills, and game breaking synergies in this fast-paced bullet heaven survival game crafted by a solo dev. Whether playing alone or teaming up in couch co-op, every run is chaotic, challenging, and full of surprises.
10 Survivors - 60 Skins
Choose from 10 unique heroes and collect over 60 skins to customize your survivor.
60+ Skills
Customize every run based on your game style, you can find anything you want! from critical chance builds, to lifesteal, summoning and more! Combine 28+ passive skills with powerful synergies to create game-breaking builds and unleash carnage your own way. Every run is different!
2 Players Couch Co-op Chaos
Double the firepower, double the mayhem! Team up in local couch co-op and fight side by side in the ultimate test of survival. Work together to create devastating builds, cover each other’s backs, and see if you can outlast the swarm!
5 Unique Scenarios
Five unique scenarios with their own mechanics, a gripping story on surviving the apocalypse.
30 Collectibles
Uncover 30 unique collectibles that reveal the events leading up to and during the apocalypse. Each one adds a piece to the puzzle of what really happened.
The Enemies
Face relentless hordes of Zs, but beware the Alpha Zs:
Sneaky – Silent but deadly.
Fatty – Slow, but explosive!
Fast – Quick and relentless.
Tanky – Tough and hard to take down.
Goliath – A force of nature that few can defeat.
This is just the beginning. As a passionate solo developer, I’m committed to delivering frequent updates with new heroes, weapons, skills, enemies, modes, and more, all based on your feedback! let's grow together!

macOS Warning: If you see a compatibility notice, the game still runs on macOS 10.15+ but is not notarized. You may need to allow the app manually in System Preferences → Security & Privacy.
Hi everyone!
Santosai here! This update focuses on polish, balance improvements, bug fixes, and making every run feel more dynamic and rewarding. As a solo developer, Im incredibly grateful for every bit of feedback, this update is the first step in making ZK1L4 even better for you.
\nHighlights of v1.1
New Improvements
More dynamic skill selection screen (visual effects + feedback). Better readability in UI and improved clarity in stats.
[/*]Added Version label in main menu.\nChanged global points used for Upgrades/Shopping from Currency to Evolution Points
[/*]Added 5 new guns\nAdded a new Z: Gold Z which has tons of HP but upon defeat gives great rewards
[/*]Added a new starting gun: Uzi
[/*]
Balance Adjustments
Decreased general Z damage in early game
[/*]Gold rewards are now more consistent and fair.
[/*]Passive skills rebalanced to create more exciting synergies.
[/*]Early-game and mid-game pacing improved.\n
[/*]
Visual Upgrades
Better glow effects on buttons.
[/*]Enhanced GPU particles for interactions when acquiring a new upgrade.
[/*]Smoother transitions during level-up and upgrades.
[/*]Improved loading screen graphics.\n
[/*]
Bug Fixes
Fixed audio issues where some sounds wouldnt play on level-up.
[/*]Fixed inconsistencies in skill cost calculations.
[/*]Improved an issue in which currency could be negative.
[/*]Improved menu navigation at Main Menu \n
[/*]
Thank You!!
\nThank you for playing and supporting ZK1L4!
Im a solo indie dev, and every update is built with love.
Your feedback keeps this project alive, and more updates are already on the way.
If you enjoy the game, leaving a review or sharing it with a friend helps a LOT!
Stay safe out there the zombies aren\'t slowing down.
Minimum Setup
- OS: Linux distribution released after 2016
- Processor: Intel Core 2 Duo E8200. AMD Athlon XE BE-2300. Raspberry Pi 4Memory: 2 GB RAM
- Memory: 2 GB RAM
- Graphics: Intel HD Graphics 5500 (Broadwell). AMD Radeon R5 Graphics (Kaveri)
- Storage: 1 GB available space
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