Games like Star Ruler
Games like Star Ruler include Stellaris, STAR WARS™ Empire at War - Gold Pack, ENDLESS Space™ 2, ENDLESS Space™ - Definitive Edition, and Sins of a Solar Empire II. We matched them by the tags players give Star Ruler on Steam (Strategy, Indie, Space, 4X, and RTS): closest matches first, and among equally close ones the better-known games.
Stellaris
Shared: Strategy · Space · 4X
STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Space · RTS
ENDLESS Space™ 2
Shared: Strategy · Space · 4X
ENDLESS Space™ - Definitive Edition
Shared: Strategy · Space · 4X
Sins of a Solar Empire II
Shared: Strategy · Space · 4X
Master of Orion
Shared: Strategy · Space · 4X
AI War: Fleet Command
Shared: Strategy · Space · Indie
Sid Meier’s Civilization® VI
Shared: Strategy · Grand Strategy · 4X
FTL: Faster Than Light
Shared: Strategy · Space · Indie
Sid Meier's Civilization®: Beyond Earth™
Shared: Strategy · Space · 4X
Homeworld Remastered Collection
Shared: Strategy · Space · RTS
Sins of a Solar Empire®: Rebellion
Shared: Strategy · Space · RTS
Battlefleet Gothic: Armada 2
Shared: Strategy · Space · RTS
ENDLESS Legend™
Shared: Strategy · 4X · Indie
Homeworld: Deserts of Kharak
Shared: Strategy · RTS · Sci-fi
Supreme Commander: Forged Alliance
Shared: Strategy · RTS · Sci-fi
Battlefleet Gothic: Armada (Classic)
Shared: Strategy · Space · RTS
Distant Worlds: Universe
Shared: Strategy · Space · 4X
Dune: Spice Wars
Shared: Strategy · RTS · Sci-fi
StarDrive
Shared: Strategy · Space · Indie
Planetary Annihilation: TITANS
Shared: Strategy · RTS · Sci-fi
Cosmoteer: Starship Architect & Commander
Shared: Space · Sci-fi · Indie
Total War: WARHAMMER II
Shared: Strategy · RTS · Grand Strategy
Homeworld 3
Shared: Strategy · Space · RTS