Games like Ghost Watchers
Games like Ghost Watchers include Phasmophobia, Inside the Backrooms, Escape the Backrooms, Dead by Daylight, and The Outlast Trials. We matched them by the tags players give Ghost Watchers on Steam (Horror, Multiplayer, Survival Horror, Demons, and Adventure): closest matches first, and among equally close ones the better-known games.

Phasmophobia
Shared: Horror · Multiplayer · Co-op

Inside the Backrooms
Shared: Horror · Multiplayer · Survival Horror

Escape the Backrooms
Shared: Horror · Multiplayer · Co-op

Dead by Daylight
Shared: Horror · Multiplayer · Survival Horror

The Outlast Trials
Shared: Horror · Co-op · Multiplayer

Backrooms: Escape Together
Shared: Horror · Multiplayer · Co-op

Pacify
Shared: Horror · Multiplayer · Co-op

DEVOUR
Shared: Horror · Multiplayer · Survival Horror

Lethal Company
Shared: Horror · Co-op · Survival Horror

Demonologist
Shared: Horror · Multiplayer · Co-op

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

Left 4 Dead 2
Shared: Co-op · Multiplayer · Horror

Dying Light
Shared: Horror · Survival Horror · First-Person

Subnautica 2
Shared: Horror · Multiplayer · Co-op

Lunch Lady
Shared: Horror · Multiplayer · Co-op

PANICORE
Shared: Horror · Survival Horror · Co-op

Labyrinthine
Shared: Horror · Co-op · Multiplayer

Outlast
Shared: Horror · Survival Horror · First-Person

PEAK
Shared: Multiplayer · Co-op · Adventure

Poppy Playtime
Shared: Horror · Survival Horror · Puzzle

Secret Neighbor: Hello Neighbor Multiplayer
Shared: Horror · Multiplayer · Co-op

Little Nightmares II
Shared: Horror · Adventure · Puzzle

Nuclear Nightmare
Shared: Horror · Co-op · Survival Horror

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