Games like Galactic Simulator2: Stargate
Games like Galactic Simulator2: Stargate include FTL: Faster Than Light, Stellaris, X4: Foundations, Kerbal Space Program, and SPORE™. We matched them by the tags players give Galactic Simulator2: Stargate on Steam (Simulation, Space, Strategy, Roguelite, and Roguelike): closest matches first, and among equally close ones the better-known games.
FTL: Faster Than Light
Shared: Space · Strategy · Roguelike
Stellaris
Shared: Space · Strategy · Simulation
X4: Foundations
Shared: Simulation · Space · Space Sim
Kerbal Space Program
Shared: Simulation · Space · Space Sim
SPORE™
Shared: Simulation · Space · Sandbox
Elite Dangerous
Shared: Space · Simulation · Space Sim
Universe Sandbox
Shared: Simulation · Space · Space Sim
Dyson Sphere Program
Shared: Space · Simulation · Sci-fi
Hardspace: Shipbreaker
Shared: Space · Simulation · Sci-fi
SpaceEngine
Shared: Space · Sci-fi · Casual
X Rebirth
Shared: Simulation · Space · Sci-fi
Kerbal Space Program 2
Shared: Space · Simulation · Sandbox
Shortest Trip to Earth
Shared: Space · Roguelite · Strategy
Empyrion - Galactic Survival
Shared: Simulation · Space · Space Sim
No Man's Sky
Shared: Space · Sci-fi · Exploration
SPORE™ Galactic Adventures
Shared: Simulation · Space · Strategy
X3: Terran Conflict
Shared: Simulation · Space · Strategy
Space Haven
Shared: Strategy · Space · Simulation
EVE Online
Shared: Space Sim · Space · Simulation
Cosmoteer: Starship Architect & Commander
Shared: Space · Sci-fi · Strategy
Cities: Skylines
Shared: Simulation · Strategy · Sandbox
Spaceflight Simulator
Shared: Space · Simulation · Space Sim
Between the Stars
Shared: Space · Simulation · Strategy
Space Engineers
Shared: Space · Simulation · Sandbox