Games like OUTSTAND
Games like OUTSTAND include Phasmophobia, Poppy Playtime, Sally Face - Episode One, Little Nightmares II, and SOMA. We matched them by the tags players give OUTSTAND on Steam (Horror, Jump Scare, Adventure, Psychological Horror, and Demons): closest matches first, and among equally close ones the better-known games.

Phasmophobia
Shared: Horror · Psychological Horror · Supernatural

Poppy Playtime
Shared: Horror · Puzzle · Psychological Horror

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

Little Nightmares II
Shared: Horror · Adventure · Dark

SOMA
Shared: Horror · Psychological Horror · Dark

Pacify
Shared: Horror · Psychological Horror · Dark

Inside the Backrooms
Shared: Horror · Psychological Horror · Puzzle

Little Nightmares
Shared: Horror · Adventure · Dark

IMSCARED
Shared: Horror · Psychological Horror · Adventure

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

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

MOLE
Shared: Horror · Adventure · Psychological Horror

Outlast
Shared: Horror · Psychological Horror · Adventure

Darkwood
Shared: Horror · Adventure · Psychological Horror

Fran Bow
Shared: Psychological Horror · Horror · Adventure

MADiSON
Shared: Horror · Psychological Horror · Dark

The Room Two
Shared: Horror · Puzzle · Adventure

Demonologist
Shared: Horror · Psychological Horror · Dark

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

Detention
Shared: Horror · Psychological Horror · Adventure

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

The Mortuary Assistant
Shared: Horror · Demons · Supernatural

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

Dread Flats
Shared: Horror · Adventure · Psychological Horror