Games like Horror Office
Games like Horror Office include Outlast, Poppy Playtime, Resident Evil 7 Biohazard, Outlast 2, and MiSide. We matched them by the tags players give Horror Office on Steam (Adventure, Survival, Puzzle, 3D, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: First-Person · Atmospheric · Horror

Poppy Playtime
Shared: Puzzle · Horror · First-Person

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

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

MiSide
Shared: Psychological Horror · First-Person · 3D

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

The Forest
Shared: Survival · Adventure · Horror

Little Nightmares II
Shared: Adventure · Puzzle · Horror

Scorn
Shared: Puzzle · Atmospheric · Horror

Little Nightmares
Shared: Adventure · Atmospheric · Horror

MADiSON
Shared: Puzzle · Psychological Horror · Adventure

The Beast Inside
Shared: Adventure · First-Person · Horror

Inside the Backrooms
Shared: Puzzle · Adventure · Horror

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

SOMA
Shared: Atmospheric · Psychological Horror · Horror

Fran Bow
Shared: Puzzle · Adventure · Psychological Horror

Subnautica 2
Shared: Survival · Horror · Adventure

Layers of Fear (2016)
Shared: Atmospheric · Psychological Horror · Horror

Granny
Shared: Puzzle · Horror · Adventure

Blair Witch
Shared: Adventure · Horror · Psychological Horror

We Happy Few
Shared: Adventure · Survival · First-Person

The Room Two
Shared: Puzzle · Adventure · Atmospheric

Penumbra Overture
Shared: Adventure · First-Person · Horror

Dead by Daylight
Shared: Survival · Horror · Gore