Games like AI War 2: The Spire Rises
Games like AI War 2: The Spire Rises include Stellaris, FTL: Faster Than Light, STAR WARS™ Empire at War - Gold Pack, Sins of a Solar Empire II, and AI War: Fleet Command. We matched them by the tags players give AI War 2: The Spire Rises on Steam (Strategy, Simulation, Indie, RTS, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Stellaris
Shared: Strategy · Space · Sci-fi

FTL: Faster Than Light
Shared: Strategy · Indie · Sci-fi

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · RTS · Sci-fi

Sins of a Solar Empire II
Shared: Strategy · RTS · Space

AI War: Fleet Command
Shared: Strategy · RTS · Indie

Distant Worlds: Universe
Shared: Strategy · Simulation · Sci-fi

Hearts of Iron IV
Shared: Strategy · Simulation · Grand Strategy

Dune: Spice Wars
Shared: Strategy · RTS · Sci-fi

Homeworld Remastered Collection
Shared: Strategy · RTS · Space

Creeper World 3: Arc Eternal
Shared: Strategy · Indie · RTS

Plague Inc: Evolved
Shared: Strategy · Simulation · Indie

Sid Meier’s Civilization® VI
Shared: Strategy · Simulation · 4X

Distant Worlds 2
Shared: Strategy · Simulation · Sci-fi

Door Kickers
Shared: Strategy · Simulation · Tactical

Particle Fleet: Emergence
Shared: Strategy · Simulation · Indie

Nexus - The Jupiter Incident
Shared: Strategy · Simulation · Sci-fi

NEBULOUS: Fleet Command
Shared: Strategy · Simulation · RTS

ENDLESS Space™ 2
Shared: Strategy · Sci-fi · Space

Sins of a Solar Empire®: Rebellion
Shared: Simulation · Strategy · RTS

Europa Universalis IV
Shared: Strategy · Simulation · 4X

Terra Invicta
Shared: Strategy · Simulation · 4X

Sid Meier's Civilization®: Beyond Earth™
Shared: Strategy · Sci-fi · Space

Steel Division 2
Shared: Strategy · RTS · Simulation

ENDLESS Space™ - Definitive Edition
Shared: Strategy · Sci-fi · Space