Games like The Dark Rooms
Games like The Dark Rooms include Outlast, Poppy Playtime, Phasmophobia, Bendy and the Dark Revival, and Buckshot Roulette. We matched them by the tags players give The Dark Rooms on Steam (Action, Adventure, First-Person, Indie, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: First-Person · Horror · Singleplayer

Poppy Playtime
Shared: Singleplayer · First-Person · Horror

Phasmophobia
Shared: Horror · First-Person · Psychological Horror

Bendy and the Dark Revival
Shared: Action · First-Person · Singleplayer

Buckshot Roulette
Shared: First-Person · Dark · Singleplayer

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

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

Blair Witch
Shared: Adventure · Indie · First-Person

We Happy Few
Shared: Adventure · Action · First-Person

Bendy and the Ink Machine
Shared: First-Person · Singleplayer · Horror

Among the Sleep - Enhanced Edition
Shared: Adventure · Indie · First-Person

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

Outlast 2
Shared: First-Person · Horror · Singleplayer

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

Thief
Shared: Action · First-Person · Adventure

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

Visage
Shared: First-Person · Horror · Dark

The Forest
Shared: Adventure · Horror · Action

Dark Deception
Shared: First-Person · Singleplayer · Horror

Little Nightmares II
Shared: Adventure · Singleplayer · Horror

IMSCARED
Shared: Indie · First-Person · Adventure

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

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

Little Nightmares
Shared: Adventure · Singleplayer · Horror