Games like Gemini Wars
Games like Gemini Wars include Stellaris, Sins of a Solar Empire II, Europa Universalis IV, Creeper World 4, and STAR WARS™ Empire at War - Gold Pack. We matched them by the tags players give Gemini Wars on Steam (4X, Grand Strategy, Wargame, Space, and War): closest matches first, and among equally close ones the better-known games.
Stellaris
Shared: Grand Strategy · Space · 4X
Sins of a Solar Empire II
Shared: 4X · Space · RTS
Europa Universalis IV
Shared: Grand Strategy · 4X · Wargame
Creeper World 4
Shared: Wargame · Space · RTS
STAR WARS™ Empire at War - Gold Pack
Shared: Space · RTS · Strategy
Total War: ROME REMASTERED
Shared: Grand Strategy · 4X · Strategy
Total War: WARHAMMER
Shared: 4X · Grand Strategy · Strategy
ENDLESS Space™ 2
Shared: 4X · Space · Grand Strategy
Hearts of Iron IV
Shared: Grand Strategy · War · Strategy
Sid Meier’s Civilization® VI
Shared: Grand Strategy · 4X · Strategy
Europa Universalis V
Shared: Grand Strategy · Wargame · Strategy
Age of History 3
Shared: Wargame · Grand Strategy · RTS
NEBULOUS: Fleet Command
Shared: Grand Strategy · War · 4X
Total War: WARHAMMER II
Shared: Grand Strategy · War · RTS
Sid Meier's Civilization VII
Shared: Grand Strategy · 4X · Strategy
Terra Invicta
Shared: Grand Strategy · 4X · War
Distant Worlds: Universe
Shared: 4X · Space · Grand Strategy
Airships: Conquer the Skies
Shared: 4X · War · Wargame
Tempest Rising
Shared: Base Building · RTS · Strategy
Distant Worlds 2
Shared: 4X · Grand Strategy · Space
Ultimate General: Civil War
Shared: Wargame · Grand Strategy · War
Dune: Spice Wars
Shared: 4X · Grand Strategy · RTS
Star Trek: Infinite
Shared: 4X · Grand Strategy · Space
X4: Foundations
Shared: Space · 4X · Space Sim