Games like Nocturnal Watch
Games like Nocturnal Watch include Outlast, Resident Evil 7 Biohazard, Escape the Backrooms, Outlast 2, and MiSide. We matched them by the tags players give Nocturnal Watch on Steam (3D, First-Person, Stylized, Gore, and Dark Fantasy): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: First-Person · Horror · Gore

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

Escape the Backrooms
Shared: Horror · First-Person · 3D

Outlast 2
Shared: First-Person · Horror · Gore

MiSide
Shared: First-Person · 3D · Horror

Five Nights at Freddy's: Security Breach
Shared: First-Person · Horror · 3D

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

Buckshot Roulette
Shared: First-Person · Horror · 3D

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

Lunacid
Shared: First-Person · Dark Fantasy · Retro

Garten of Banban
Shared: First-Person · Horror · 3D

Amnesia: The Dark Descent
Shared: Gore · Horror · First-Person

Mouthwashing
Shared: Horror · Retro · Gore

SOMA
Shared: Horror · First-Person · Psychological Horror

Poppy Playtime
Shared: First-Person · Horror · Singleplayer

Bramble: The Mountain King
Shared: Horror · Dark Fantasy · 3D

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

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

Bad Parenting 1: Mr. Red Face
Shared: 3D · Horror · Psychological Horror

Scorn
Shared: Gore · First-Person · Horror

Amnesia: A Machine For Pigs
Shared: First-Person · Horror · Psychological Horror

Dead by Daylight
Shared: Horror · Gore · First-Person

Firewatch
Shared: First-Person · Adventure · Singleplayer

Phasmophobia
Shared: Horror · First-Person · Psychological Horror