Games like SCP-9779-JP
Games like SCP-9779-JP include Poppy Playtime, Outlast, SOMA, Resident Evil 7 Biohazard, and Outlast 2. We matched them by the tags players give SCP-9779-JP on Steam (Horror, Survival Horror, Puzzle, Psychological Horror, and First-Person): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Puzzle · Survival Horror

Outlast
Shared: Horror · Survival Horror · First-Person

SOMA
Shared: Horror · Psychological Horror · Survival Horror

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

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

The Outlast Trials
Shared: Horror · Survival Horror · Psychological Horror

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

Inside the Backrooms
Shared: Horror · Survival Horror · Puzzle

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

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

Little Nightmares
Shared: Horror · Puzzle · Dark

Darkwood
Shared: Horror · Survival Horror · Psychological Horror

Little Nightmares II
Shared: Horror · Puzzle · Psychological Horror

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

Five Nights at Freddy's
Shared: Horror · Survival Horror · Psychological Horror

MADiSON
Shared: Horror · Survival Horror · Psychological Horror

Penumbra Overture
Shared: Horror · Survival Horror · First-Person

The Forest
Shared: Horror · Survival · Survival Horror

DEVOUR
Shared: Horror · Survival Horror · Psychological Horror

Dead by Daylight
Shared: Horror · Survival Horror · Survival

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

Amnesia: The Bunker
Shared: Horror · Survival Horror · First-Person

Alien: Isolation
Shared: Horror · Survival Horror · First-Person

Hello Neighbor
Shared: Horror · First-Person · Survival Horror