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You’re stranded in a sealed-off city where radiation lingers and society crumbled after a nuclear disaster. Scavenging for tools, managing hunger, and fending off hostile groups are just part of daily life. The world shifts based on what you do, help a faction gain power, or let them collapse. Weather, resource availability, and even the layout of the city change between playthroughs. Your choices aren’t just story beats; they warp the environment and relationships permanently. The reactive systems stand out. Players on early access forums note how small actions snowball, stealing from a trader might trigger a chain of events leading to war, or a random act of kindness could unlock hidden paths. No two runs feel the same. Dialogue options and skill checks add weight to decisions, but there’s no tutorial hand-holding. You figure out the rules as you break them. The city doesn’t care how you survive. You do.
City 20, a secret nuclear city quarantined after a radioactive leak and left to starve. As one of the survivors inhabiting City 20 years after the accident, you must survive within this sandbox, using the environment and society to your advantage. You are completely free to choose how to play and what to do, but be aware: the world actively adapts and changes depending on your actions. It is up to you to work with or against the world.
Game Modes
Single player
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