Games like VI: REM
Games like VI: REM include Outlast, Poppy Playtime, Outlast 2, Amnesia: The Dark Descent, and Darkwood. We matched them by the tags players give VI: REM on Steam (Survival Horror, Action, Psychological Horror, Thriller, and Dark): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Survival Horror · Psychological Horror · Atmospheric

Poppy Playtime
Shared: Survival Horror · Psychological Horror · Dark

Outlast 2
Shared: Survival Horror · Psychological Horror · Dark

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

Darkwood
Shared: Survival Horror · Psychological Horror · Action

Resident Evil Village
Shared: Survival Horror · Action · Atmospheric

The Outlast Trials
Shared: Survival Horror · Psychological Horror · Action

SOMA
Shared: Psychological Horror · Survival Horror · Atmospheric

SIGNALIS
Shared: Survival Horror · Psychological Horror · Atmospheric

Resident Evil 7 Biohazard
Shared: Survival Horror · Psychological Horror · Atmospheric

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

Alan Wake
Shared: Action · Thriller · Adventure

Little Nightmares II
Shared: Adventure · Dark · Psychological Horror

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

Little Nightmares
Shared: Atmospheric · Adventure · Dark

Amnesia: The Bunker
Shared: Survival Horror · Atmospheric · Stealth

METRO 2033 Redux
Shared: Action · Atmospheric · Survival Horror

Granny Remake
Shared: Survival Horror · Psychological Horror · Action

Resident Evil Requiem
Shared: Survival Horror · Action · Action-Adventure

Bendy and the Dark Revival
Shared: Action · Survival Horror · Adventure

Dishonored
Shared: Action · Stealth · Atmospheric

Penumbra Overture
Shared: Survival Horror · Adventure · Psychological Horror

Choo-Choo Charles
Shared: Survival Horror · Dark · Adventure

Slender: The Arrival
Shared: Survival Horror · Psychological Horror · Dark