Games like Stellaris
Games like Stellaris include Galactic Civilizations IV, Europa Universalis IV, X4: Foundations, Sins of a Solar Empire®: Rebellion, and ENDLESS Space™ 2. We matched them by the tags players give Stellaris on Steam (Space, Strategy, Grand Strategy, Sci-fi, and 4X): closest matches first, and among equally close ones the better-known games.
Galactic Civilizations IV
Shared: Space · Grand Strategy · Strategy
Europa Universalis IV
Shared: Strategy · Grand Strategy · 4X
X4: Foundations
Shared: Space · Simulation · Exploration
Sins of a Solar Empire®: Rebellion
Shared: Space · Strategy · Multiplayer
ENDLESS Space™ 2
Shared: Space · Strategy · Sci-fi
STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Space · Sci-fi
Sid Meier's Civilization®: Beyond Earth™
Shared: Strategy · Space · Sci-fi
Sid Meier’s Civilization® VI
Shared: Strategy · Grand Strategy · Multiplayer
ENDLESS Space™ - Definitive Edition
Shared: Strategy · Space · 4X
Crusader Kings II
Shared: Strategy · Grand Strategy · Simulation
Hearts of Iron IV
Shared: Strategy · Grand Strategy · Simulation
No Man's Sky
Shared: Space · Sci-fi · Exploration
Master of Orion
Shared: Strategy · Space · 4X
Distant Worlds: Universe
Shared: Strategy · Space · 4X
NEBULOUS: Fleet Command
Shared: Strategy · Grand Strategy · Simulation
Sid Meier's Civilization VII
Shared: Strategy · Grand Strategy · 4X
Elite Dangerous
Shared: Space · Sci-fi · Exploration
Kerbal Space Program
Shared: Space · Sandbox · Simulation
Crusader Kings III
Shared: Strategy · Grand Strategy · Simulation
Distant Worlds 2
Shared: Strategy · Space · Grand Strategy
Rebel Inc: Escalation
Shared: Strategy · Grand Strategy · 4X
RimWorld
Shared: Strategy · Sandbox · Sci-fi
Imperator: Rome
Shared: Strategy · Grand Strategy · Simulation
FTL: Faster Than Light
Shared: Space · Strategy · Sci-fi