Games like DEDstress
Games like DEDstress include Poppy Playtime, Outlast, Ultimate Custom Night, Bendy and the Dark Revival, and Bendy and the Ink Machine. We matched them by the tags players give DEDstress on Steam (Indie, Thriller, Action, Difficult, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Puzzle · Survival Horror · Singleplayer

Outlast
Shared: Survival Horror · First-Person · Singleplayer

Ultimate Custom Night
Shared: Difficult · Survival Horror · Singleplayer

Bendy and the Dark Revival
Shared: Action · Indie · Survival Horror

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

Five Nights at Freddy's
Shared: Indie · Survival Horror · Difficult

Five Nights at Freddy's: Security Breach
Shared: Survival Horror · Singleplayer · First-Person

Five Nights at Freddy's: Sister Location
Shared: Survival Horror · Difficult · First-Person

Five Nights at Freddy's 2
Shared: Survival Horror · Indie · Difficult

Five Nights at Freddy's 4
Shared: Survival Horror · Difficult · First-Person

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

Amnesia: The Dark Descent
Shared: Survival Horror · Puzzle · First-Person

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

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

Five Nights at Freddy's 3
Shared: Survival Horror · Indie · Difficult

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

FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: Survival Horror · Action · Singleplayer

Granny
Shared: Survival Horror · Indie · Puzzle

Garten of Banban
Shared: First-Person · Singleplayer · Puzzle

Getting Over It with Bennett Foddy
Shared: Difficult · Indie · Singleplayer

The Stanley Parable
Shared: Indie · First-Person · Comedy

Tattletail
Shared: Survival Horror · Indie · First-Person

Portal
Shared: Puzzle · First-Person · Singleplayer

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