Games like Tachyon Wars
Games like Tachyon Wars include Stellaris, Sid Meier's Civilization®: Beyond Earth™, ENDLESS Space™ 2, Galactic Civilizations III, and STAR WARS™ Empire at War - Gold Pack. We matched them by the tags players give Tachyon Wars on Steam (Strategy, Space, 4X, Sci-fi, and Grand Strategy): closest matches first, and among equally close ones the better-known games.

Stellaris
Shared: Strategy · Space · Sci-fi

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

ENDLESS Space™ 2
Shared: Strategy · Space · 4X

Galactic Civilizations III
Shared: 4X · Sci-fi · Grand Strategy

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

Master of Orion
Shared: Strategy · Space · 4X

ENDLESS Space™ - Definitive Edition
Shared: Strategy · Space · 4X

Distant Worlds 2
Shared: Strategy · 4X · Space

Sins of a Solar Empire II
Shared: Strategy · Space · 4X

Anno 2205™
Shared: Strategy · Sci-fi · 4X

Solar Nations 2
Shared: Strategy · Space · Grand Strategy

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

Battlefleet Gothic: Armada 2
Shared: Strategy · Space · Sci-fi

Dune: Spice Wars
Shared: Strategy · Sci-fi · 4X

Distant Worlds: Universe
Shared: Strategy · Space · 4X

Europa Universalis IV
Shared: Strategy · Grand Strategy · 4X

Galactic Civilizations IV
Shared: Space · Strategy · 4X

Total War: ROME REMASTERED
Shared: Strategy · Grand Strategy · 4X

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

Total War: WARHAMMER
Shared: Strategy · 4X · Grand Strategy

Europa Universalis V
Shared: Strategy · Grand Strategy · 4X

Creeper World 4
Shared: Space · Real Time Tactics · Strategy

Planetary Annihilation: TITANS
Shared: Strategy · Real Time Tactics · Sci-fi

Broken Arrow
Shared: Strategy · Real Time Tactics · Wargame