Games like Nightmare: Les Origines
Games like Nightmare: Les Origines include Escape the Backrooms, Dead by Daylight, Backrooms: Escape Together, Inside the Backrooms, and Pacify. We matched them by the tags players give Nightmare: Les Origines on Steam (Horror, Action, Survival Horror, Multiplayer, and Online Co-Op): closest matches first, and among equally close ones the better-known games.

Escape the Backrooms
Shared: Horror · Multiplayer · Online Co-Op

Dead by Daylight
Shared: Horror · Survival Horror · Multiplayer

Backrooms: Escape Together
Shared: Horror · Multiplayer · Survival Horror

Inside the Backrooms
Shared: Horror · Survival Horror · Multiplayer

Pacify
Shared: Horror · Multiplayer · Online Co-Op

Lethal Company
Shared: Horror · Online Co-Op · Survival Horror

Dying Light
Shared: Horror · Survival Horror · Online Co-Op

Content Warning
Shared: Horror · Online Co-Op · Multiplayer

DEVOUR
Shared: Horror · Survival Horror · Multiplayer

PEAK
Shared: Multiplayer · Online Co-Op · Exploration

The Outlast Trials
Shared: Horror · Multiplayer · Survival Horror

Outlast
Shared: Horror · Survival Horror · First-Person

Left 4 Dead 2
Shared: Multiplayer · Action · Horror

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Action

R.E.P.O.
Shared: Horror · Multiplayer · Online Co-Op

Nuclear Nightmare
Shared: Horror · Survival Horror · Online Co-Op

The Beast Inside
Shared: Horror · Survival Horror · Action

Phasmophobia
Shared: Horror · Multiplayer · Online Co-Op

Sons Of The Forest
Shared: Multiplayer · Survival Horror · Horror

Lunch Lady
Shared: Horror · Multiplayer · Online Co-Op

Resident Evil Village
Shared: Horror · Survival Horror · Action

Escape from Playtime
Shared: Horror · Multiplayer · Online Co-Op

Emissary Zero
Shared: Horror · Multiplayer · Online Co-Op

Subnautica 2
Shared: Horror · Multiplayer · Survival Horror