Games like Extinction Day
Games like Extinction Day include Cities: Skylines, WorldBox - God Simulator, Victoria 3, Crusader Kings II, and Victoria II. We matched them by the tags players give Extinction Day on Steam (Outbreak Sim, Real-Time with Pause, Simulation, God Game, and Resource Management): closest matches first, and among equally close ones the better-known games.
Cities: Skylines
Shared: Simulation · Sandbox · Management
WorldBox - God Simulator
Shared: Simulation · God Game · Sandbox
Victoria 3
Shared: Simulation · Political Sim · Grand Strategy
Crusader Kings II
Shared: Simulation · Political Sim · Grand Strategy
Victoria II
Shared: Simulation · Real-Time with Pause · Political Sim
Plague Inc: Evolved
Shared: Outbreak Sim · Simulation · Strategy
Manor Lords
Shared: Simulation · Management · Sandbox
Imperator: Rome
Shared: Simulation · Political Sim · Grand Strategy
Stellaris
Shared: Simulation · Sandbox · Real-Time with Pause
Tropico 4
Shared: Simulation · Sandbox · Management
Foundation
Shared: Simulation · Sandbox · Resource Management
Cities: Skylines II
Shared: Simulation · Sandbox · Management
Jurassic World Evolution
Shared: Simulation · Sandbox · Management
Against the Storm
Shared: Simulation · Resource Management · Management
Reus
Shared: God Game · Simulation · Sandbox
Crusader Kings III
Shared: Simulation · Management · Grand Strategy
Bio Inc. Redemption
Shared: Outbreak Sim · Simulation · Sandbox
Kingdoms and Castles
Shared: Simulation · Resource Management · Management
Jurassic World Evolution 2
Shared: Simulation · Sandbox · Management
Beholder
Shared: Political Sim · Dystopian · Simulation
Oxygen Not Included
Shared: Resource Management · Simulation · Management
Infection Free Zone
Shared: Simulation · Outbreak Sim · Management
Tropico 6
Shared: Simulation · Sandbox · Political Sim
Planet Coaster 2
Shared: Simulation · Sandbox · God Game