Games like Dark Side
Games like Dark Side include Outlast, The Outlast Trials, Dead by Daylight, Resident Evil 4, and Poppy Playtime. We matched them by the tags players give Dark Side on Steam (Indie, Casual, Action, Horror, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Survival Horror · Psychological Horror

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

Dead by Daylight
Shared: Horror · Survival Horror · Survival

Resident Evil 4
Shared: Action · Horror · Survival Horror

Poppy Playtime
Shared: Horror · Survival Horror · Indie

The Forest
Shared: Horror · Survival · Survival Horror

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

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

Escape the Backrooms
Shared: Horror · Survival Horror · Psychological Horror

Dark Deception
Shared: Horror · Indie · Survival Horror

Darkwood
Shared: Horror · Survival Horror · Action

The Beast Inside
Shared: Horror · Survival Horror · Action

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Horror · Indie

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

Ultimate Custom Night
Shared: Horror · Survival Horror · Indie

DEVOUR
Shared: Horror · Survival Horror · Psychological Horror

Slender: The Arrival
Shared: Indie · Horror · Survival Horror

Pacify
Shared: Horror · Survival Horror · Psychological Horror

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Action

Sons Of The Forest
Shared: Survival · Survival Horror · Horror

[Chillas Art] The Convenience Store
Shared: Indie · Horror · Casual

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

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

Resident Evil Village
Shared: Horror · Survival Horror · Action