Games like Sinister Hospital
Games like Sinister Hospital include Phasmophobia, Buckshot Roulette, Pacify, Darkwood, and Demonologist. We matched them by the tags players give Sinister Hospital on Steam (Horror, Psychological Horror, Demons, Dark, and Psychological): closest matches first, and among equally close ones the better-known games.

Phasmophobia
Shared: Horror · Psychological Horror · Supernatural

Buckshot Roulette
Shared: Horror · Dark · Psychological

Pacify
Shared: Horror · Psychological Horror · Dark

Darkwood
Shared: Horror · Psychological Horror · Dark

Demonologist
Shared: Horror · Psychological Horror · Dark

Mouthwashing
Shared: Horror · Psychological Horror · Psychological

Fran Bow
Shared: Psychological Horror · Horror · Dark

Resident Evil Requiem
Shared: Horror · Zombies · Action

Sally Face - Episode One
Shared: Psychological Horror · Horror · Dark

The Mortuary Assistant
Shared: Horror · Demons · Supernatural

Outlast
Shared: Horror · Psychological Horror · Dark

Poppy Playtime
Shared: Horror · Psychological Horror · Dark

Little Nightmares II
Shared: Horror · Dark · Psychological Horror

Hellblade: Senua's Sacrifice
Shared: Psychological · Horror · Dark

The Outlast Trials
Shared: Horror · Psychological Horror · Dark

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

Resident Evil 4
Shared: Horror · Action · Zombies

CloverPit
Shared: Psychological Horror · Horror · Psychological

Outlast 2
Shared: Horror · Psychological Horror · Dark

Total Chaos
Shared: Psychological Horror · Horror · Action

Resident Evil Village
Shared: Horror · Zombies · Action

SILENT HILL f
Shared: Horror · Psychological Horror · Psychological

SOMA
Shared: Horror · Psychological Horror · Dark

Last Report
Shared: Horror · Psychological Horror · Dark