Games like Celestial Routes
Games like Celestial Routes include No Man's Sky, Elite Dangerous, ASTRONEER, Starfield, and Subnautica. We matched them by the tags players give Celestial Routes on Steam (Space, Sci-fi, Exploration, Survival, and Space Sim): closest matches first, and among equally close ones the better-known games.

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

Elite Dangerous
Shared: Space · Space Sim · Exploration

ASTRONEER
Shared: Space · Survival · Exploration

Starfield
Shared: Space · Sci-fi · Open World

Subnautica
Shared: Survival · Exploration · Open World

X4: Foundations
Shared: Space · Exploration · Space Sim

Avorion
Shared: Exploration · Space · Space Sim

Breathedge
Shared: Space · Survival · Sci-fi

Subnautica: Below Zero
Shared: Survival · Exploration · Open World

Sons Of The Forest
Shared: Survival · Open World · Base Building

The Planet Crafter
Shared: Survival · Base Building · Space

The Alters
Shared: Survival · Sci-fi · Exploration

Space Engineers
Shared: Space · Survival · Open World

Empyrion - Galactic Survival
Shared: Space · Survival · Exploration

EVE Online
Shared: Exploration · Space Sim · Space

Dune: Awakening
Shared: Exploration · Survival · Base Building

Outer Wilds
Shared: Space · Exploration · Open World

Enshrouded
Shared: Survival · Open World · Base Building

Starbound
Shared: Space · Survival · Exploration

Astrometica
Shared: Survival · Space Sim · Space

Valheim
Shared: Survival · Open World · Exploration

Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Space · Exploration

SpaceEngine
Shared: Sci-fi · Space · Open World

Core Keeper
Shared: Exploration · Survival · Open World