Games like Ultra Age - Rebirth Project
Games like Ultra Age - Rebirth Project include Deliver Us The Moon, STAR WARS Jedi: Survivor™, PRAGMATA, Chorus, and The Invincible. We matched them by the tags players give Ultra Age - Rebirth Project on Steam (Action, Adventure, Indie, Space, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Deliver Us The Moon
Shared: Adventure · Action · Indie

STAR WARS Jedi: Survivor™
Shared: Action · Adventure · Singleplayer

PRAGMATA
Shared: Action · Sci-fi · Adventure

Chorus
Shared: Action · Adventure · Indie

The Invincible
Shared: Adventure · Robots · Sci-fi

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

Warhammer 40,000: Space Marine 2
Shared: Action · Adventure · Sci-fi

Trailmakers
Shared: Action · Space · Adventure

Half-Life 2
Shared: Action · Sci-fi · Adventure

LEGO® Star Wars™: The Skywalker Saga
Shared: Adventure · Action · Space

Stray
Shared: Adventure · Singleplayer · Robots

Rebel Galaxy
Shared: Space · Sci-fi · Adventure

Breathedge
Shared: Space · Indie · Singleplayer

STAR WARS™ Battlefront™ II
Shared: Space · Action · Singleplayer

Outer Wilds
Shared: Space · Adventure · Indie

Heat Signature
Shared: Space · Indie · Action

Starfield
Shared: Space · Sci-fi · Singleplayer

Star Wars Outlaws
Shared: Action · Adventure · Singleplayer

Atomic Heart
Shared: Adventure · Action · Singleplayer

Endless Sky
Shared: Space · Sci-fi · Adventure

FTL: Faster Than Light
Shared: Space · Indie · Sci-fi

Call of Duty®: Infinite Warfare
Shared: Action · Space · Sci-fi

Marvel's Guardians of the Galaxy
Shared: Action · Singleplayer · Adventure

Black Mesa
Shared: Action · Sci-fi · Singleplayer