Games like HOSPİTAL8
Games like HOSPİTAL8 include Outlast, SOMA, Poppy Playtime, Little Nightmares II, and Outlast 2. We matched them by the tags players give HOSPİTAL8 on Steam (Horror, Adventure, Psychological Horror, First-Person, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · First-Person · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

Little Nightmares II
Shared: Horror · Adventure · Singleplayer

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

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

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

Little Nightmares
Shared: Horror · Adventure · Atmospheric

MiSide
Shared: Psychological Horror · Horror · First-Person

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

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

Visage
Shared: Horror · Psychological Horror · First-Person

No, I'm not a Human
Shared: Horror · Psychological Horror · Singleplayer

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

Still Wakes the Deep
Shared: Horror · Psychological Horror · First-Person

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

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

Firewatch
Shared: Adventure · Atmospheric · First-Person

Ready or Not
Shared: Horror · Realistic · Singleplayer

ROUTINE
Shared: Psychological Horror · Singleplayer · Atmospheric

Inside the Backrooms
Shared: Horror · Psychological Horror · Adventure

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

What Remains of Edith Finch
Shared: Atmospheric · First-Person · Adventure

Subliminal
Shared: Psychological Horror · Horror · Atmospheric