Games like Those Who Dwell
Games like Those Who Dwell include SOMA, What Remains of Edith Finch, Layers of Fear (2016), Firewatch, and Mouthwashing. We matched them by the tags players give Those Who Dwell on Steam (Horror, Psychological Horror, First-Person, Walking Simulator, and Exploration): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Psychological Horror · Atmospheric

What Remains of Edith Finch
Shared: Walking Simulator · First-Person · Atmospheric

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

Firewatch
Shared: Walking Simulator · Atmospheric · First-Person

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Amnesia: A Machine For Pigs
Shared: Horror · Walking Simulator · First-Person

Still Wakes the Deep
Shared: Horror · Psychological Horror · First-Person

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

Outlast
Shared: Horror · First-Person · Psychological Horror

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

MiSide
Shared: Psychological Horror · Horror · First-Person

Lethal Company
Shared: Horror · First-Person · Psychological Horror

Visage
Shared: Horror · Psychological Horror · First-Person

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

The Park®
Shared: Horror · Psychological Horror · First-Person

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

Blair Witch
Shared: Horror · Psychological Horror · First-Person

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

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

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

Gone Home
Shared: Walking Simulator · Exploration · First-Person

Among the Sleep - Enhanced Edition
Shared: Horror · First-Person · Atmospheric

Layers of Fear 2 (2019)
Shared: Horror · Psychological Horror · Walking Simulator

Scanner Sombre
Shared: Horror · Walking Simulator · Exploration