Games like MOONROT
Games like MOONROT include Outer Wilds, The Callisto Protocol™, Dead Space, Five Nights at Freddy's: Secret of the Mimic, and Prey. We matched them by the tags players give MOONROT on Steam (Horror, Exploration, Space, Sci-fi, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Outer Wilds
Shared: Exploration · Space · Mystery

The Callisto Protocol™
Shared: Horror · Sci-fi · Space

Dead Space
Shared: Horror · Space · Sci-fi

Five Nights at Freddy's: Secret of the Mimic
Shared: Horror · Exploration · 3D

Prey
Shared: Sci-fi · Space · Horror

Starfield
Shared: Space · Exploration · Sci-fi

Five Nights at Freddy's: Security Breach
Shared: Horror · Exploration · 3D

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

Dead Space (2008)
Shared: Horror · Sci-fi · Space

Lorelei and the Laser Eyes
Shared: Exploration · Horror · Action-Adventure

Lethal Company
Shared: Horror · Exploration · Sci-fi

STAR WARS Jedi: Fallen Order™
Shared: Action-Adventure · Exploration · Sci-fi

SOMA
Shared: Horror · Sci-fi · Exploration

Pacify
Shared: Horror · Exploration · Sci-fi

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

Mouthwashing
Shared: Horror · Retro · Indie

Voyager-19
Shared: Horror · Space · Sci-fi

STAR WARS Jedi: Survivor™
Shared: Sci-fi · Action · Action-Adventure

Escape the Backrooms
Shared: Horror · Exploration · 3D

Alien: Isolation
Shared: Horror · Sci-fi · Space

Elite Dangerous
Shared: Space · Exploration · Sci-fi

Project Silverfish
Shared: Exploration · Horror · 3D

R.E.P.O.
Shared: Horror · 3D · Exploration

Hamster Hunter
Shared: Exploration · Horror · Action-Adventure