Games like Somnium Tenebris
Games like Somnium Tenebris include Phasmophobia, PEAK, Escape the Backrooms, R.E.P.O., and Pacify. We matched them by the tags players give Somnium Tenebris on Steam (Online Co-Op, Underwater, Lovecraftian, Horror, and Mystery): closest matches first, and among equally close ones the better-known games.
Phasmophobia
Shared: Online Co-Op · Horror · Multiplayer
PEAK
Shared: Online Co-Op · Multiplayer · Co-op
Escape the Backrooms
Shared: Online Co-Op · Horror · Multiplayer
R.E.P.O.
Shared: Online Co-Op · Horror · Multiplayer
Pacify
Shared: Online Co-Op · Horror · Co-op
Content Warning
Shared: Online Co-Op · Horror · Multiplayer
Backrooms: Escape Together
Shared: Online Co-Op · Horror · Multiplayer
Lethal Company
Shared: Online Co-Op · Horror · Co-op
Subnautica 2
Shared: Underwater · Horror · Multiplayer
Dead by Daylight
Shared: Horror · Online Co-Op · Multiplayer
Shift At Midnight
Shared: Online Co-Op · Horror · Multiplayer
Labyrinthine
Shared: Online Co-Op · Horror · Co-op
Bloons TD 6
Shared: Online Co-Op · Multiplayer · Co-op
Demonologist
Shared: Online Co-Op · Horror · Multiplayer
DEVOUR
Shared: Online Co-Op · Horror · Multiplayer
Inside the Backrooms
Shared: Horror · Online Co-Op · Multiplayer
Left 4 Dead 2
Shared: Online Co-Op · Co-op · Multiplayer
Liars Bar
Shared: Online Co-Op · Multiplayer · Co-op
Murky Divers
Shared: Online Co-Op · Horror · Underwater
RV There Yet?
Shared: Online Co-Op · Co-op · Multiplayer
How to Fish
Shared: Online Co-Op · Multiplayer · Co-op
The Past Within
Shared: Online Co-Op · Co-op · Horror
Raft
Shared: Multiplayer · Co-op · Online Co-Op
Secret Neighbor: Hello Neighbor Multiplayer
Shared: Online Co-Op · Horror · Multiplayer