Games like Intown Nightmares
Games like Intown Nightmares include SOMA, Outlast, Mouthwashing, Outlast 2, and Darkwood. We matched them by the tags players give Intown Nightmares on Steam (Psychological Horror, Horror, Action, Adventure, and Retro): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Psychological Horror · Horror · Atmospheric

Outlast
Shared: Horror · Psychological Horror · First-Person

Mouthwashing
Shared: Psychological Horror · Horror · Retro

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

Darkwood
Shared: Horror · Psychological Horror · Adventure

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

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

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

Alan Wake
Shared: Horror · Action · Adventure

The Evil Within 2
Shared: Horror · Psychological Horror · Action

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

SILENT HILL f
Shared: Psychological Horror · Horror · Action

SILENT HILL 2
Shared: Psychological Horror · Horror · Atmospheric

The Beast Inside
Shared: Horror · Adventure · Action

MiSide
Shared: Psychological Horror · Horror · Story Rich

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

SILENT HILL: Townfall
Shared: Horror · Psychological Horror · Action

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

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

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

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

METRO 2033 Redux
Shared: Horror · Action · Atmospheric

Little Nightmares
Shared: Horror · Adventure · Atmospheric

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure