Games like Dune: Spice Wars
Games like Dune: Spice Wars include Sid Meier’s Civilization® VI, Stellaris, Sins of a Solar Empire®: Rebellion, STAR WARS™ Empire at War - Gold Pack, and Terra Invicta. We matched them by the tags players give Dune: Spice Wars on Steam (Management, Singleplayer, Sci-fi, RTS, and Strategy): closest matches first, and among equally close ones the better-known games.

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

Stellaris
Shared: Sci-fi · Strategy · Grand Strategy

Sins of a Solar Empire®: Rebellion
Shared: Management · Singleplayer · Strategy

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

Terra Invicta
Shared: Strategy · Management · 4X

Planetary Annihilation: TITANS
Shared: RTS · Strategy · Singleplayer

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

Total War: WARHAMMER II
Shared: Strategy · RTS · Singleplayer

Manor Lords
Shared: Strategy · Management · Simulation

Crusader Kings III
Shared: Strategy · Management · Grand Strategy

Rebel Inc: Escalation
Shared: Strategy · 4X · Grand Strategy

Jurassic World Evolution
Shared: Management · Singleplayer · Strategy

Cities: Skylines
Shared: Management · Singleplayer · Strategy

Total War: THREE KINGDOMS
Shared: Strategy · RTS · Grand Strategy

Jurassic World Evolution 2
Shared: Management · Singleplayer · Strategy

Anno 2070™
Shared: Strategy · RTS · Simulation

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

Anno 2205™
Shared: Strategy · Sci-fi · Singleplayer

HUMANKIND™
Shared: Strategy · 4X · Management

Total War: ROME II - Emperor Edition
Shared: Strategy · Grand Strategy · RTS

Old World
Shared: Strategy · 4X · Simulation

Sid Meier's Civilization VII
Shared: Strategy · Grand Strategy · 4X

Total War: WARHAMMER III
Shared: Strategy · RTS · Grand Strategy

Imperator: Rome
Shared: Strategy · Singleplayer · Grand Strategy