Games like Dead Exposure
Games like Dead Exposure include SOMA, Phasmophobia, Outlast, Layers of Fear (2016), and Firewatch. We matched them by the tags players give Dead Exposure on Steam (Horror, Psychological Horror, Supernatural, Walking Simulator, and Investigation): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Psychological Horror · Story Rich

Phasmophobia
Shared: Horror · Psychological Horror · Supernatural

Outlast
Shared: Horror · Psychological Horror · First-Person

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

Firewatch
Shared: Adventure · Walking Simulator · Story Rich

Outlast 2
Shared: Horror · Psychological Horror · First-Person

What Remains of Edith Finch
Shared: Walking Simulator · Story Rich · Atmospheric

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

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

Resident Evil 7 Biohazard
Shared: Horror · First-Person · Psychological Horror

Blair Witch
Shared: Horror · Psychological Horror · Adventure

Mouthwashing
Shared: Horror · Psychological Horror · Story Rich

MiSide
Shared: Psychological Horror · Horror · Story Rich

Visage
Shared: Horror · Psychological Horror · First-Person

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · First-Person

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

The Painscreek Killings
Shared: Investigation · Horror · Walking Simulator

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

The Beast Inside
Shared: Horror · Adventure · First-Person

Resident Evil Village
Shared: Horror · First-Person · Survival Horror

The Evil Within 2
Shared: Horror · Psychological Horror · Story Rich

Welcome to Kowloon
Shared: Horror · Psychological Horror · Walking Simulator

DON'T SCREAM
Shared: Horror · Psychological Horror · Walking Simulator

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