BITROT

Four survivors. Fresh maps. One last stand.

BITROT is a free, 8-bit-styled 3D zombie shooter for 1–4 players. Fight from safe room to safe room through generated city streets and forests, build your character with perks, then call for extraction and hold off the horde.

Play solo with bot teammates, bring friends over LAN, or use Steam lobbies for online co-op.

Survive the run

• Four levels, one finale. Reach the safe rooms, find the radio, survive three waves and make it to extraction.
• Pick your role. Medic, Gunner, Scout or Engineer—each with an active ability.
• Build as you go. Earn XP from kills, rescues and safe rooms. Choose perks as you level up; upgrades last for the run.
• Fresh city and forest maps. Generated layouts change your route through rooms, streets, clearings and cabins.
• Keep each other alive. Revive downed teammates and watch for runners, exploding boomers, pouncing hunters and the brute.
• Bring your squad—or bots. Up to four survivors, with bots filling empty slots.

Download and play

Download the ZIP for your platform, extract it and keep its files together. Everyone in a co-op session needs the same version.

• Windows x86-64: launch BITROT.exe. The current build is unsigned, so Windows may show a SmartScreen prompt.
• macOS, Apple Silicon and Intel: open BITROT.app. The current build is not notarized; first-launch guidance is included in its README.
• Linux x86-64: run ./BITROT.x86_64; give the executable permission to run if needed.

Solo and LAN play do not require Steam. For online co-op, each player needs Steam running and signed in. Launch BITROT, choose PLAY WITH STEAM → HOST LOBBY, then join through the in-game lobby browser, friends list or an invitation while the game is running.

BITROT currently uses Steam’s developer test app ID, so Steam displays Spacewar. BITROT is not sold on the Steam store. The Steam friends-list “Join Game” action does not launch this standalone build; use the in-game options instead.

Controls

WASD: move · Shift: sprint · Space: jump · Left mouse: fire · R: reload · V or middle mouse: shove · Hold E: use, heal or revive · Q: class ability · F: flashlight · 1/2 or mouse wheel: weapons · M: minimap · Esc: pause.

Tell us how your run went

Did your squad reach extraction? Leave a comment with your platform, game version, and the moment that worked—or went wrong. Bug reports and feedback are welcome.

Game website · Instagram

Built with Godot and GodotSteam. Contains pixelated zombie violence and blood. Screenshots show actual gameplay, including bot sessions; clean forest and finale captures have the HUD hidden.