Games like ISOLATE
Games like ISOLATE include Poppy Playtime, DISTRAINT: Deluxe Edition, Five Nights at Freddy's, Pony Island, and Outlast. We matched them by the tags players give ISOLATE on Steam (Pixel Graphics, Casual, Dark, Survival, and Psychological Horror): closest matches first, and among equally close ones the better-known games.
Poppy Playtime
Shared: Singleplayer · Dark · Horror
DISTRAINT: Deluxe Edition
Shared: Pixel Graphics · Psychological Horror · Indie
Five Nights at Freddy's
Shared: Singleplayer · Psychological Horror · Horror
Pony Island
Shared: Pixel Graphics · Psychological Horror · Indie
Outlast
Shared: Psychological Horror · Horror · Survival
Five Nights at Freddy's 2
Shared: Singleplayer · Psychological Horror · Horror
Outlast 2
Shared: Psychological Horror · Dark · Horror
Vampire Survivors
Shared: Pixel Graphics · Casual · Singleplayer
FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: Singleplayer · Horror · Dark
No, I'm not a Human
Shared: Psychological Horror · Singleplayer · Horror
IMSCARED
Shared: Pixel Graphics · Psychological Horror · Indie
Ultimate Custom Night
Shared: Singleplayer · Horror · Survival
Cookie Clicker
Shared: Casual · Pixel Graphics · Horror
Getting Over It with Bennett Foddy
Shared: Psychological Horror · Singleplayer · Casual
Timberman
Shared: Pixel Graphics · Casual · Indie
FAITH: The Unholy Trinity
Shared: Pixel Graphics · Psychological Horror · Dark
Buckshot Roulette
Shared: Dark · Singleplayer · Horror
Five Nights at Freddy's 4
Shared: Dark · Singleplayer · Horror
Sally Face - Episode One
Shared: Psychological Horror · Dark · Indie
Little Nightmares II
Shared: Dark · Singleplayer · Horror
Megabonk
Shared: Survival · Indie · Pixel Graphics
Five Nights at Freddy's 3
Shared: Singleplayer · Psychological Horror · Horror
The Binding of Isaac: Rebirth
Shared: Pixel Graphics · Indie · Dark
Dark Deception
Shared: Singleplayer · Psychological Horror · Horror