Games like What Remains Inside
Games like What Remains Inside include Firewatch, What Remains of Edith Finch, Outer Wilds, Fears to Fathom - Ironbark Lookout, and POOLS. We matched them by the tags players give What Remains Inside on Steam (Exploration, Thriller, Multiple Endings, Adventure, and Psychological Horror): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Exploration · Atmospheric

What Remains of Edith Finch
Shared: Exploration · Adventure · Atmospheric

Outer Wilds
Shared: Exploration · Adventure · Mystery

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

POOLS
Shared: Exploration · Psychological Horror · Atmospheric

Subliminal
Shared: Psychological Horror · Thriller · Atmospheric

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

The Bridge Curse 2: The Extrication
Shared: Multiple Endings · Thriller · Psychological Horror

The Suicide of Rachel Foster
Shared: Thriller · Adventure · Exploration

The Forgotten City
Shared: Exploration · Adventure · Multiple Endings

MiSide
Shared: Psychological Horror · Thriller · Atmospheric

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

Mouthwashing
Shared: Psychological Horror · Atmospheric · Thriller

INMOST
Shared: Exploration · Adventure · Thriller

The Casting of Frank Stone™
Shared: Multiple Endings · Adventure · Psychological Horror

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

The Park®
Shared: Psychological Horror · Exploration · Adventure

Gone Home
Shared: Exploration · Walking Simulator · Atmospheric

Five Nights at Freddy's: Security Breach
Shared: Multiple Endings · Exploration · Adventure

The Stanley Parable
Shared: Adventure · Exploration · Multiple Endings

Summer of '58
Shared: Thriller · Psychological Horror · Atmospheric

No, I'm not a Human
Shared: Psychological Horror · Multiple Endings · Atmospheric

DREDGE
Shared: Exploration · Adventure · Psychological Horror

INFRA
Shared: Exploration · Adventure · Atmospheric