Games like Dead Hospital
Games like Dead Hospital include Escape the Backrooms, Five Nights at Freddy's: Security Breach, Resident Evil Requiem, Backrooms: Escape Together, and Lethal Company. We matched them by the tags players give Dead Hospital on Steam (Action-Adventure, Exploration, 3D, First-Person, and Realistic): closest matches first, and among equally close ones the better-known games.

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

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

Resident Evil Requiem
Shared: Survival Horror · Horror · Action-Adventure

Backrooms: Escape Together
Shared: Horror · Survival Horror · First-Person

Lethal Company
Shared: First-Person · Horror · Exploration

Sons Of The Forest
Shared: Survival Horror · Horror · Exploration

Subnautica 2
Shared: Exploration · Horror · First-Person

PEAK
Shared: Exploration · First-Person · 3D

Five Nights at Freddy's: Secret of the Mimic
Shared: First-Person · Horror · Exploration

Far Cry® 5
Shared: Action-Adventure · Exploration · First-Person

The Forest
Shared: Horror · First-Person · Exploration

Outlast
Shared: First-Person · Horror · Survival Horror

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

Inside the Backrooms
Shared: Horror · Survival Horror · Exploration

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

R.E.P.O.
Shared: Horror · First-Person · 3D

Choo-Choo Charles
Shared: Survival Horror · First-Person · Horror

SILENT HILL: Townfall
Shared: Horror · First-Person · Exploration

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

Amnesia: Rebirth
Shared: Action-Adventure · First-Person · Exploration

Pacify
Shared: Horror · Exploration · First-Person

Content Warning
Shared: Exploration · Horror · First-Person

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

Nuclear Nightmare
Shared: First-Person · Horror · Survival Horror