Games like Dawn Sanatorium
Games like Dawn Sanatorium include Poppy Playtime, MiSide, Little Nightmares II, Mouthwashing, and Sally Face - Episode One. We matched them by the tags players give Dawn Sanatorium on Steam (Psychological Horror, Horror, First-Person, Atmospheric, and Thriller): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · First-Person · Psychological Horror

MiSide
Shared: Psychological Horror · Horror · First-Person

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

Mouthwashing
Shared: Psychological Horror · Horror · Atmospheric

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

SOMA
Shared: Psychological Horror · Horror · Atmospheric

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

Outlast
Shared: Horror · First-Person · Psychological Horror

Little Nightmares
Shared: Horror · Atmospheric · Adventure

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

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

Fran Bow
Shared: Psychological Horror · Horror · Adventure

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · Atmospheric

What Remains of Edith Finch
Shared: Atmospheric · First-Person · Story Rich

Inside the Backrooms
Shared: Horror · Psychological Horror · Puzzle

Detention
Shared: Horror · Psychological Horror · Atmospheric

Firewatch
Shared: Atmospheric · Adventure · First-Person

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

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

Firework
Shared: Horror · Psychological Horror · Atmospheric

Subliminal
Shared: Psychological Horror · Atmospheric · Horror

The Room Two
Shared: Atmospheric · Horror · Puzzle

Amnesia: Rebirth
Shared: First-Person · Horror · Puzzle