Games like Battle For Cosmos
Games like Battle For Cosmos include Company of Heroes 3, FTL: Faster Than Light, STAR WARS™ Empire at War - Gold Pack, Warhammer 40,000: Dawn of War - Definitive Edition, and Cosmoteer: Starship Architect & Commander. We matched them by the tags players give Battle For Cosmos on Steam (Action RTS, Strategy, RTS, 2D, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Company of Heroes 3
Shared: Strategy · RTS · Singleplayer

FTL: Faster Than Light
Shared: Strategy · Space · Singleplayer

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

Warhammer 40,000: Dawn of War - Definitive Edition
Shared: Strategy · RTS · Singleplayer

Cosmoteer: Starship Architect & Commander
Shared: Singleplayer · Sci-fi · 2D

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

Cossacks 3
Shared: Strategy · RTS · Action RTS

Oxygen Not Included
Shared: Singleplayer · 2D · Resource Management

Iron Marines
Shared: Strategy · RTS · Singleplayer

Starship Troopers: Terran Command
Shared: Strategy · RTS · Singleplayer

Battlefleet Gothic: Armada 2
Shared: Strategy · RTS · Space

Homeworld 3
Shared: Strategy · RTS · Space

Broken Arrow
Shared: Strategy · RTS · Action RTS

Stellaris
Shared: Strategy · Space · Sci-fi

Age of Mythology: Retold
Shared: Strategy · RTS · Singleplayer

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

Mindustry
Shared: RTS · Strategy · Resource Management

Age of Empires II (Retired)
Shared: Strategy · RTS · Singleplayer

STAR WARS™ Galactic Battlegrounds Saga
Shared: Strategy · RTS · Singleplayer

Battlefleet Gothic: Armada (Classic)
Shared: Strategy · RTS · Space

Homeworld Remastered Collection
Shared: Strategy · RTS · Space

Anno 2070™
Shared: Strategy · RTS · Singleplayer

Homeworld: Deserts of Kharak
Shared: Strategy · RTS · Sci-fi

Planetary Annihilation: TITANS
Shared: Strategy · RTS · Singleplayer