Games like PHOBOS Project
Games like PHOBOS Project include Poppy Playtime, Sally Face - Episode One, Layers of Fear (2016), No, I'm not a Human, and Outlast. We matched them by the tags players give PHOBOS Project on Steam (Indie, Adventure, Horror, Psychological Horror, and Psychological): closest matches first, and among equally close ones the better-known games.
Poppy Playtime
Shared: Horror · Singleplayer · First-Person
Sally Face - Episode One
Shared: Indie · Psychological Horror · Horror
Layers of Fear (2016)
Shared: Horror · Psychological Horror · Indie
No, I'm not a Human
Shared: Horror · Indie · Psychological Horror
Outlast
Shared: Horror · Psychological Horror · First-Person
MiSide
Shared: Psychological Horror · Horror · First-Person
Mouthwashing
Shared: Horror · Psychological Horror · Indie
Firework
Shared: Indie · Horror · Psychological Horror
Firewatch
Shared: Adventure · Indie · First-Person
Little Nightmares
Shared: Horror · Adventure · Indie
Blair Witch
Shared: Adventure · Horror · Indie
Fran Bow
Shared: Psychological Horror · Horror · Adventure
Little Nightmares II
Shared: Adventure · Horror · Psychological Horror
Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure
DISTRAINT: Deluxe Edition
Shared: Indie · Horror · Psychological Horror
Five Nights at Freddy's
Shared: Horror · Indie · Psychological Horror
[Chillas Art] The Convenience Store
Shared: Indie · Horror · Adventure
Rusty Lake Paradise
Shared: Indie · Adventure · Psychological Horror
Buckshot Roulette
Shared: Horror · Indie · First-Person
Garten of Banban
Shared: Horror · Psychological Horror · First-Person
The Beast Inside
Shared: Adventure · Horror · First-Person
Raging Loop
Shared: Adventure · Indie · Psychological Horror
Lethal Company
Shared: Horror · First-Person · Psychological Horror
What Remains of Edith Finch
Shared: Adventure · First-Person · Indie