Games like R00000
Games like R00000 include The Exit 8, Amnesia: Rebirth, Inside the Backrooms, Escape the Backrooms, and Five Nights at Freddy's: Security Breach. We matched them by the tags players give R00000 on Steam (Exploration, Puzzle, Mystery Dungeon, Action-Adventure, and 3D): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Exploration · Puzzle · Horror

Amnesia: Rebirth
Shared: Puzzle · Action-Adventure · First-Person

Inside the Backrooms
Shared: Puzzle · Horror · Exploration

Escape the Backrooms
Shared: Horror · Exploration · Psychological Horror

Five Nights at Freddy's: Security Breach
Shared: Horror · Exploration · First-Person

In Sound Mind
Shared: Puzzle · Horror · Psychological Horror

MiSide
Shared: Psychological Horror · First-Person · Horror

Lethal Company
Shared: Exploration · First-Person · Horror

SOMA
Shared: Horror · Exploration · Psychological Horror

Hamster Hunter
Shared: Exploration · Action-Adventure · 3D

Endacopia
Shared: Puzzle · Exploration · Horror

Indiana Jones and the Great Circle
Shared: Action-Adventure · Puzzle · First-Person

Outer Wilds
Shared: Exploration · Puzzle · Story Rich

Superliminal
Shared: Puzzle · First-Person · Surreal

Garten of Banban
Shared: Puzzle · Horror · First-Person

The Bridge Curse Road to Salvation
Shared: Puzzle · Exploration · First-Person

Poppy Playtime
Shared: Puzzle · Horror · First-Person

Amanda the Adventurer
Shared: Puzzle · First-Person · Horror

Five Nights at Freddy's: Secret of the Mimic
Shared: First-Person · Exploration · Horror

Hello Neighbor
Shared: Horror · First-Person · Action-Adventure

Antichamber
Shared: Puzzle · Exploration · First-Person

MOLE
Shared: Puzzle · Horror · Exploration

SILENT HILL: Townfall
Shared: Exploration · Horror · First-Person

Shipwrecked 64
Shared: Puzzle · Exploration · Horror