Backrooms director & Portal superfan Kane Parsons spotted visiting Valve for the second time this year
PC Gamer•
From $29.99
Lowest price right now at Steam
About the game
Build a civilization of real people, working together to advance society and stop a meteor, all without destroying the ecosystem in the process.
Playtime
70 h
How long the story takes without detours.
184 h
The story plus the side quests that matter.
205 h
Every quest, every secret, every achievement.
Price and availability
Price history · 12 months
Lowest price: today