Games like I'm on Observation Duty 3
Games like I'm on Observation Duty 3 include Poppy Playtime, Resident Evil 7 Biohazard, Inside the Backrooms, Garten of Banban, and Outlast. We matched them by the tags players give I'm on Observation Duty 3 on Steam (Psychological Horror, Survival Horror, Psychological, Horror, and Adventure): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Survival Horror · Psychological Horror

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

Inside the Backrooms
Shared: Survival Horror · Horror · Psychological Horror

Garten of Banban
Shared: Psychological Horror · VR · Horror

Outlast
Shared: Survival Horror · Horror · Psychological Horror

Phasmophobia
Shared: Psychological Horror · Horror · VR

Granny
Shared: Survival Horror · Horror · VR

Escape the Backrooms
Shared: Psychological Horror · Horror · Survival Horror

Amnesia: The Dark Descent
Shared: Psychological Horror · Horror · Survival Horror

SOMA
Shared: Psychological Horror · Horror · Survival Horror

FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: VR · Horror · Survival Horror

Resident Evil Village
Shared: Survival Horror · Horror · VR

DEVOUR
Shared: Horror · Survival Horror · Psychological Horror

The Room Two
Shared: Puzzle · Mystery · Horror

Outlast 2
Shared: Psychological Horror · Survival Horror · Horror

Bendy and the Ink Machine
Shared: Horror · Survival Horror · Puzzle

Lethal Company
Shared: Horror · Survival Horror · Psychological Horror

SILENT HILL 2
Shared: Psychological Horror · Survival Horror · Horror

The Forest
Shared: Horror · Survival Horror · Adventure

Five Nights at Freddy's
Shared: Survival Horror · Horror · Psychological Horror

The Room 4: Old Sins
Shared: Puzzle · Adventure · Mystery

Five Nights at Freddy's 2
Shared: Survival Horror · Horror · Psychological Horror

The Beast Inside
Shared: Horror · Survival Horror · Adventure

Subnautica 2
Shared: Horror · Survival Horror · Survival