Games like OBSESSED
Games like OBSESSED include Summer of '58, Mouthwashing, Fears to Fathom - Ironbark Lookout, MiSide, and SILENT HILL 2. We matched them by the tags players give OBSESSED on Steam (Horror, Psychological Horror, Thriller, Psychological, and Atmospheric): closest matches first, and among equally close ones the better-known games.

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

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

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

MiSide
Shared: Psychological Horror · Horror · Atmospheric

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

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

SOMA
Shared: Horror · Psychological Horror · Atmospheric

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

Firewatch
Shared: Atmospheric · Walking Simulator · Horror

September 7th
Shared: Horror · Psychological Horror · Walking Simulator

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

The Park®
Shared: Horror · Psychological Horror · Walking Simulator

Phasmophobia
Shared: Horror · Psychological Horror · Supernatural

What Remains of Edith Finch
Shared: Atmospheric · Walking Simulator · Psychological Horror

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

ROUTINE
Shared: Psychological Horror · Atmospheric · Horror

The Lightkeeper
Shared: Horror · Psychological Horror · Atmospheric

Fears to Fathom - Norwood Hitchhike
Shared: Horror · Psychological Horror · Thriller

Subliminal
Shared: Psychological Horror · Horror · Atmospheric

Psalm 5:9-13
Shared: Horror · Psychological Horror · Walking Simulator

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

Martha Is Dead
Shared: Psychological Horror · Psychological · Horror

KARMA: The Dark World
Shared: Psychological Horror · Horror · Walking Simulator

Outlast
Shared: Horror · Psychological Horror · Atmospheric