Games like The Dark Mind
Games like The Dark Mind include Outlast, Resident Evil 7 Biohazard, Outlast 2, Resident Evil Village, and Still Wakes the Deep. We matched them by the tags players give The Dark Mind on Steam (Hidden Object, First-Person, Gore, Action, and Indie): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: First-Person · Gore · Psychological Horror

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

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

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

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

Buckshot Roulette
Shared: First-Person · Indie · Horror

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

Trepang2
Shared: Gore · Singleplayer · First-Person

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

Mouthwashing
Shared: Psychological Horror · Indie · Gore

Poppy Playtime
Shared: First-Person · Singleplayer · Horror

Ready or Not
Shared: First-Person · Singleplayer · Action

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

SOMA
Shared: Psychological Horror · Horror · Gore

DOOM
Shared: Gore · Action · First-Person

Dark Deception
Shared: First-Person · Horror · Singleplayer

Layers of Fear (2016)
Shared: First-Person · Psychological Horror · Horror

Blood and Bacon
Shared: Gore · Action · First-Person

Spooky's Jump Scare Mansion: HD Renovation
Shared: First-Person · Indie · Action

Slender: The Arrival
Shared: First-Person · Indie · Horror

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

Escape the Backrooms
Shared: First-Person · Psychological Horror · Horror

Five Nights at Freddy's
Shared: Singleplayer · Indie · Psychological Horror

DOOM Eternal
Shared: Gore · Action · First-Person