Games like The Inn-Sanity
Games like The Inn-Sanity include SOMA, Layers of Fear (2016), Firewatch, MiSide, and What Remains of Edith Finch. We matched them by the tags players give The Inn-Sanity on Steam (Horror, Adventure, Psychological Horror, Walking Simulator, and Word Game): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Psychological Horror · Exploration

Layers of Fear (2016)
Shared: Horror · Psychological Horror · Walking Simulator

Firewatch
Shared: Adventure · Walking Simulator · Story Rich

MiSide
Shared: Psychological Horror · Horror · Story Rich

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

Still Wakes the Deep
Shared: Horror · Psychological Horror · Walking Simulator

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

Crimson Snow (2023)
Shared: Horror · Walking Simulator · Psychological Horror

Darkwood
Shared: Horror · Adventure · Psychological Horror

Fears to Fathom - Ironbark Lookout
Shared: Horror · Psychological Horror · Adventure

No, I'm not a Human
Shared: Horror · Psychological Horror · Choices Matter

Bad Parenting 1: Mr. Red Face
Shared: Horror · Adventure · Psychological Horror

The Cabin Factory
Shared: Horror · Psychological Horror · Walking Simulator

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

SILENT HILL 2
Shared: Horror · Psychological Horror · Story Rich

Fears to Fathom - Carson House
Shared: Horror · Psychological Horror · Adventure

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

Visage
Shared: Horror · Psychological Horror · Adventure

Mouthwashing
Shared: Horror · Psychological Horror · Walking Simulator

The Exit 8
Shared: Horror · Walking Simulator · Exploration

Lethal Company
Shared: Horror · Psychological Horror · Exploration

Inside the Backrooms
Shared: Horror · Psychological Horror · Adventure

Fears to Fathom - Woodbury Getaway
Shared: Adventure · Horror · Psychological Horror

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