Games like Retis Tormentum
Games like Retis Tormentum include No Man's Sky, FTL: Faster Than Light, Hardspace: Shipbreaker, Due Process, and Cyberpunk 2077. We matched them by the tags players give Retis Tormentum on Steam (Rhythm, Space, 3D, Cyberpunk, and Runner): closest matches first, and among equally close ones the better-known games.

No Man's Sky
Shared: Space · Procedural Generation · Sci-fi

FTL: Faster Than Light
Shared: Space · Sci-fi · Procedural Generation

Hardspace: Shipbreaker
Shared: Space · Simulation · Sci-fi

Due Process
Shared: 3D · Cyberpunk · Simulation

Cyberpunk 2077
Shared: Cyberpunk · Sci-fi · Action

SpaceEngine
Shared: Space · 3D · Sci-fi

Starpoint Gemini 2
Shared: Space · Simulation · Sci-fi

Distant Worlds 2
Shared: Space · 3D · Simulation

Hatsune Miku: Project DIVA Mega Mix+
Shared: Rhythm · 3D · Action

Dyson Sphere Program
Shared: Space · Simulation · Sci-fi

Between the Stars
Shared: Space · Action · Simulation

Elite Dangerous
Shared: Space · Simulation · Sci-fi

Stellaris
Shared: Space · Sci-fi · Simulation

Dome Keeper
Shared: Action · Sci-fi · Space

Angels Fall First
Shared: Space · Action · Sci-fi

STAR WARS™: Squadrons
Shared: Space · Action · Sci-fi

Kinetic Void
Shared: Space · Simulation · Action

Heat Signature
Shared: Space · Action · Procedural Generation

Deliver Us The Moon
Shared: Space · Action · Sci-fi

Kerbal Space Program
Shared: Space · Simulation · Indie

X Rebirth
Shared: Space · Simulation · Action

X4: Foundations
Shared: Space · Simulation · Sci-fi

Solar Expanse - Space Exploration Manager
Shared: Space · 3D · Simulation

Dead as Disco
Shared: Rhythm · Action · 3D