Games like Uncanny Tales: The Watcher
Games like Uncanny Tales: The Watcher include Outlast 2, SOMA, Mouthwashing, Outlast, and Resident Evil 7 Biohazard. We matched them by the tags players give Uncanny Tales: The Watcher on Steam (Horror, Violent, Thriller, Gore, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Outlast 2
Shared: Horror · Psychological Horror · Gore

SOMA
Shared: Horror · Atmospheric · Psychological Horror

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Outlast
Shared: Horror · Atmospheric · Gore

Resident Evil 7 Biohazard
Shared: Horror · Gore · Survival Horror

Dead by Daylight
Shared: Horror · Gore · Survival Horror

Resident Evil Village
Shared: Horror · Survival Horror · Gore

MiSide
Shared: Horror · Psychological Horror · Story Rich

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

The Evil Within 2
Shared: Horror · Psychological Horror · Survival Horror

Visage
Shared: Horror · Psychological Horror · Survival Horror

Still Wakes the Deep
Shared: Horror · Gore · Psychological Horror

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

Blair Witch
Shared: Horror · Violent · Psychological Horror

Welcome to Kowloon
Shared: Horror · Atmospheric · Psychological Horror

Tiny Bunny
Shared: Horror · Atmospheric · Story Rich

The Beast Inside
Shared: Horror · Survival Horror · Psychological Horror

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

FAITH: The Unholy Trinity
Shared: Horror · Psychological Horror · Story Rich

Summer of '58
Shared: Horror · Thriller · Atmospheric

Scorn
Shared: Horror · Gore · Atmospheric

Detention
Shared: Horror · Atmospheric · Psychological Horror

Fears to Fathom - Ironbark Lookout
Shared: Horror · Thriller · Atmospheric

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