Games like Cloudrooms
Games like Cloudrooms include The Exit 8, What Remains of Edith Finch, Outer Wilds, POOLS, and Firewatch. We matched them by the tags players give Cloudrooms on Steam (Psychological Horror, Exploration, Puzzle, Atmospheric, and Realistic): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Exploration · Puzzle · Psychological Horror

What Remains of Edith Finch
Shared: Atmospheric · Exploration · Walking Simulator

Outer Wilds
Shared: Exploration · Atmospheric · Puzzle

POOLS
Shared: Psychological Horror · Atmospheric · Exploration

Firewatch
Shared: Atmospheric · Adventure · Walking Simulator

Layers of Fear (2016)
Shared: Psychological Horror · Atmospheric · Horror

Scanner Sombre
Shared: Exploration · Atmospheric · Walking Simulator

SOMA
Shared: Psychological Horror · Atmospheric · Horror

INFRA
Shared: Exploration · Puzzle · Atmospheric

Platform 8
Shared: Psychological Horror · Puzzle · Walking Simulator

Inside the Backrooms
Shared: Psychological Horror · Puzzle · Horror

Amnesia: A Machine For Pigs
Shared: Psychological Horror · Atmospheric · Walking Simulator

Poppy Playtime
Shared: Puzzle · Horror · Psychological Horror

DON'T SCREAM
Shared: Psychological Horror · Atmospheric · Horror

Backrooms: Escape Together
Shared: Psychological Horror · Horror · Atmospheric

The Witness
Shared: Exploration · Puzzle · Atmospheric

Fears to Fathom - Ironbark Lookout
Shared: Psychological Horror · Atmospheric · Exploration

Psalm 5:9-13
Shared: Psychological Horror · Exploration · Horror

Sally Face - Episode One
Shared: Psychological Horror · Puzzle · Horror

Subliminal
Shared: Psychological Horror · Realistic · Atmospheric

Firework
Shared: Puzzle · Psychological Horror · Horror

The Room Two
Shared: Puzzle · Atmospheric · Mystery

Little Nightmares II
Shared: Puzzle · Psychological Horror · Horror

Stray
Shared: Atmospheric · Exploration · Adventure

