Games like Demon Corp
Games like Demon Corp include Lethal Company, Escape the Backrooms, Backrooms: Escape Together, Dead by Daylight, and Nuclear Nightmare. We matched them by the tags players give Demon Corp on Steam (Online Co-Op, Horror, First-Person, Party Game, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Lethal Company
Shared: Online Co-Op · Horror · First-Person

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

Backrooms: Escape Together
Shared: Horror · Online Co-Op · Co-op

Dead by Daylight
Shared: Horror · Online Co-Op · Survival Horror

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

PEAK
Shared: Online Co-Op · Co-op · First-Person

Pacify
Shared: Online Co-Op · Horror · Co-op

Inside the Backrooms
Shared: Horror · Online Co-Op · Survival Horror

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

Phasmophobia
Shared: Online Co-Op · Horror · Co-op

The Outlast Trials
Shared: Horror · Co-op · First-Person

DEVOUR
Shared: Online Co-Op · Horror · Co-op

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

PANICORE
Shared: Online Co-Op · Horror · Co-op

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

Subnautica 2
Shared: Horror · Co-op · First-Person

Species: Unknown
Shared: Online Co-Op · Horror · First-Person

BIGFOOT
Shared: Horror · Online Co-Op · Co-op

Sons Of The Forest
Shared: Co-op · Horror · Survival Horror

Zort
Shared: Online Co-Op · Horror · Co-op

Left 4 Dead 2
Shared: Co-op · Online Co-Op · Horror

Outlast
Shared: Horror · First-Person · Survival Horror

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

Labyrinthine
Shared: Online Co-Op · Horror · Co-op