Games like Fear the Dark Unknown
Games like Fear the Dark Unknown include SILENT HILL f, Outlast, Escape the Backrooms, Darkwood, and The Beast Inside. We matched them by the tags players give Fear the Dark Unknown on Steam (Action, Adventure, Indie, Horror, and Survival Horror): closest matches first, and among equally close ones the better-known games.

SILENT HILL f
Shared: Horror · Psychological Horror · Action

Outlast
Shared: Horror · Survival Horror · Psychological Horror

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

Darkwood
Shared: Adventure · Horror · Action

The Beast Inside
Shared: Adventure · Horror · Action

DreadOut
Shared: Adventure · Indie · Horror

Remothered: Tormented Fathers
Shared: Action · Adventure · Horror

The Coma 2: Vicious Sisters
Shared: Adventure · Horror · Indie

Resident Evil 3
Shared: Action · Horror · Survival Horror

The Evil Within 2
Shared: Horror · Survival Horror · Action

Lethal Company
Shared: Horror · Survival Horror · Psychological Horror

Poppy Playtime
Shared: Horror · Survival Horror · Psychological Horror

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

The Forest
Shared: Horror · Adventure · Action

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

Spooky's Jump Scare Mansion: HD Renovation
Shared: Adventure · Indie · Horror

White Day: A Labyrinth Named School
Shared: Adventure · Horror · Action

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

The Hat Man: Shadow Ward
Shared: Indie · Horror · Adventure

Dark Deception
Shared: Horror · Psychological Horror · Action

Resident Evil Requiem
Shared: Action · Survival Horror · Horror

Resident Evil Revelations 2
Shared: Horror · Action · Survival Horror

Granny Remake
Shared: Horror · Survival Horror · Action

Resident Evil 4
Shared: Action · Horror · Survival Horror