Games like Darkstar One
Games like Darkstar One include Elite Dangerous, Starfield, No Man's Sky, X4: Foundations, and EVE Online. We matched them by the tags players give Darkstar One on Steam (Action, Space, Sci-fi, Space Sim, and Exploration): closest matches first, and among equally close ones the better-known games.
Elite Dangerous
Shared: Space · Space Sim · Sci-fi
Starfield
Shared: Space · Sci-fi · Open World
No Man's Sky
Shared: Space · Open World · Sci-fi
X4: Foundations
Shared: Space · Space Sim · Open World
EVE Online
Shared: Space Sim · Exploration · Space
Rebel Galaxy
Shared: Space · Sci-fi · Open World
Starpoint Gemini 2
Shared: Space · Sci-fi · Simulation
X Rebirth
Shared: Space · Action · Sci-fi
STAR WARS Jedi: Survivor™
Shared: Action · Open World · Sci-fi
Endless Sky
Shared: Space · Sci-fi · Open World
SPORE™ Galactic Adventures
Shared: Action · Space · Simulation
Cyberpunk 2077
Shared: Open World · Sci-fi · RPG
Fallout: New Vegas
Shared: Open World · RPG · Action
Fallout 4
Shared: Open World · Exploration · Singleplayer
Starpoint Gemini Warlords
Shared: Space · Sci-fi · Open World
Kerbal Space Program
Shared: Space · Simulation · Space Sim
Starcom: Unknown Space
Shared: Space · Exploration · Space Sim
SPORE™
Shared: Open World · Space · Exploration
Starpoint Gemini 3
Shared: Space · Action · Space Sim
Avorion
Shared: Space Sim · Space · Exploration
Starcom: Nexus
Shared: Space · Sci-fi · Action
Crimson Desert Enhanced
Shared: Action · Open World · Exploration
PULSAR: Lost Colony
Shared: Space Sim · Space · Open World
STAR WARS Jedi: Fallen Order™
Shared: Open World · Sci-fi · Action