Games like Apparition
Games like Apparition include Outlast, Outlast 2, Dead by Daylight, Resident Evil 7 Biohazard, and Poppy Playtime. We matched them by the tags players give Apparition on Steam (Horror, Indie, Gore, Mystery, and Demons): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Gore · First-Person

Outlast 2
Shared: Horror · Gore · First-Person

Dead by Daylight
Shared: Horror · Gore · Survival Horror

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

Poppy Playtime
Shared: Horror · First-Person · Mystery

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

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

SOMA
Shared: Horror · Atmospheric · Gore

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

Clive Barker's Hellraiser: Revival
Shared: Gore · Horror · First-Person

Bendy and the Ink Machine
Shared: Horror · First-Person · Indie

DOOM Eternal
Shared: Gore · Violent · Demons

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

Scorn
Shared: Horror · Gore · Atmospheric

The Forest
Shared: Horror · First-Person · Adventure

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

DOOM
Shared: Gore · Demons · First-Person

Pacify
Shared: Horror · First-Person · Survival Horror

Maid of Sker
Shared: Horror · Gore · Violent

MADiSON
Shared: Horror · First-Person · Indie

DEVOUR
Shared: Horror · Survival Horror · First-Person

Resident Evil 2
Shared: Horror · Gore · Survival Horror

Bendy and the Dark Revival
Shared: Horror · Indie · First-Person

Slender: The Arrival
Shared: Horror · Indie · First-Person