Games like Alone in the Office
Games like Alone in the Office include Outlast, Poppy Playtime, Resident Evil 7 Biohazard, Lethal Company, and Inside the Backrooms. We matched them by the tags players give Alone in the Office on Steam (Horror, First-Person, Atmospheric, Psychological Horror, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · First-Person · Atmospheric

Poppy Playtime
Shared: Horror · First-Person · Survival Horror

Resident Evil 7 Biohazard
Shared: Horror · First-Person · Survival Horror

Lethal Company
Shared: Horror · First-Person · Survival Horror

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

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

Resident Evil Village
Shared: Horror · First-Person · Survival Horror

SOMA
Shared: Horror · Atmospheric · Psychological Horror

Escape the Backrooms
Shared: Horror · Psychological Horror · First-Person

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

Resident Evil Requiem
Shared: Horror · Survival Horror · First-Person

Outlast 2
Shared: Horror · First-Person · Psychological Horror

Garten of Banban
Shared: Horror · First-Person · Psychological Horror

Ready or Not
Shared: Horror · FPS · First-Person

METRO 2033 Redux
Shared: Atmospheric · Horror · FPS

The Outlast Trials
Shared: Horror · First-Person · Psychological Horror

Pacify
Shared: Horror · Psychological Horror · First-Person

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

Bendy and the Ink Machine
Shared: Horror · First-Person · Survival Horror

Amnesia: The Bunker
Shared: Horror · Atmospheric · Survival Horror

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

Metro Exodus
Shared: Atmospheric · FPS · Horror

MiSide
Shared: Psychological Horror · Horror · First-Person

Five Nights at Freddy's: Security Breach
Shared: Horror · First-Person · Survival Horror