ZK1L4
Release date: Oct 23, 2025
Developers: SantosaiDev
Publishers: SantosaiDev
Genres: Action, Casual, Indie
Categories: Single-player, Multi-player, Co-op, Shared/Split Screen Co-op, Shared/Split Screen, Steam Achievements, Full controller support, Custom Volume Controls, Keyboard Only Option, Playable without Timed Input, Stereo Sound, Steam Cloud, Remote Play on TV, Remote Play Together, Family Sharing
Supported languages: English

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.