Games like DeadOS
Games like DeadOS include People Playground, Plague Inc: Evolved, Ultimate Epic Battle Simulator, Project Zomboid, and Infection Free Zone. We matched them by the tags players give DeadOS on Steam (Outbreak Sim, Indie, Early Access, Simulation, and Violent): closest matches first, and among equally close ones the better-known games.
People Playground
Shared: Gore · Violent · Sandbox
Plague Inc: Evolved
Shared: Outbreak Sim · Indie · Simulation
Ultimate Epic Battle Simulator
Shared: Simulation · Sandbox · Violent
Project Zomboid
Shared: Zombies · Sandbox · Indie
Infection Free Zone
Shared: Zombies · Simulation · Outbreak Sim
Bio Inc. Redemption
Shared: Outbreak Sim · Simulation · Gore
GoreBox
Shared: Gore · Violent · Sandbox
Feed and Grow: Fish
Shared: Simulation · Early Access · Indie
Mist Survival
Shared: Zombies · Early Access · Singleplayer
Happy Room
Shared: Simulation · Gore · Violent
Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Indie
鬼谷八荒 Tale of Immortal
Shared: Simulation · Singleplayer · Sandbox
Granny Simulator
Shared: Simulation · Indie · Violent
Hard Bullet
Shared: Simulation · Violent · Indie
Blood Trail
Shared: Violent · Gore · Early Access
Mutilate-a-Doll 2
Shared: Indie · Gore · Simulation
Banished
Shared: Simulation · Indie · Sandbox
Beast Battle Simulator
Shared: Simulation · Violent · Sandbox
Blade and Sorcery
Shared: Gore · Violent · Sandbox
Half Sword
Shared: Gore · Simulation · Indie
Hotline Miami
Shared: Indie · Violent · Gore
Paralives
Shared: Simulation · Indie · Early Access
Space Engineers
Shared: Simulation · Sandbox · Indie
Infectonator 3: Apocalypse
Shared: Outbreak Sim · Indie · Simulation