Games like SPACERIFT: Arcanum System
Games like SPACERIFT: Arcanum System include Elite Dangerous, X4: Foundations, No Man's Sky, EVE Online, and Starbase. We matched them by the tags players give SPACERIFT: Arcanum System on Steam (Open World, Sci-fi, Space Sim, Economy, and Space): closest matches first, and among equally close ones the better-known games.

Elite Dangerous
Shared: Open World · Space Sim · Sci-fi

X4: Foundations
Shared: Open World · Space · Space Sim

No Man's Sky
Shared: Open World · Sci-fi · Space

EVE Online
Shared: Open World · Space Sim · Space

Starbase
Shared: Open World · Space Sim · Sci-fi

SpaceEngine
Shared: Open World · Sci-fi · Space Sim

Starpoint Gemini 2
Shared: Open World · Space · Sci-fi

X Rebirth
Shared: Sci-fi · Space · Space Sim

Rebel Galaxy
Shared: Open World · Sci-fi · Space

Starfield
Shared: Open World · Space · Sci-fi

SpaceCraft
Shared: Sci-fi · Open World · Space

Endless Sky
Shared: Open World · Sci-fi · Space

Kerbal Space Program
Shared: Space · Space Sim · Simulation

Star Trek Online
Shared: Sci-fi · Open World · Space

Starminer
Shared: Space Sim · Economy · Sci-fi

SpaceBourne 2
Shared: Space Sim · Open World · Flight

Dyson Sphere Program
Shared: Space · Open World · Sci-fi

Avorion
Shared: Space Sim · Open World · Space

Starpoint Gemini Warlords
Shared: Open World · Space · Sci-fi

Empyrion - Galactic Survival
Shared: Space · Open World · Simulation

Albion Online
Shared: Open World · MMORPG · Crafting

X3: Terran Conflict
Shared: Sci-fi · Space · Open World

Rust
Shared: Open World · Crafting · Adventure

Astrometica
Shared: Open World · Space Sim · Crafting