Games like Wonhon: Prologue
Games like Wonhon: Prologue include A Plague Tale: Innocence, Outlast, Little Nightmares, Alien: Isolation, and Little Nightmares II. We matched them by the tags players give Wonhon: Prologue on Steam (Action, Stealth, Horror, Atmospheric, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

A Plague Tale: Innocence
Shared: Stealth · Female Protagonist · Atmospheric

Outlast
Shared: Horror · Atmospheric · Psychological Horror

Little Nightmares
Shared: Horror · Atmospheric · Singleplayer

Alien: Isolation
Shared: Horror · Stealth · Atmospheric

Little Nightmares II
Shared: Horror · Atmospheric · Singleplayer

Batman™: Arkham Knight
Shared: Action · Stealth · Singleplayer

The Outlast Trials
Shared: Horror · Stealth · Psychological Horror

Rise of the Tomb Raider™
Shared: Action · Female Protagonist · Singleplayer

Tomb Raider Game of the Year
Shared: Action · Female Protagonist · Singleplayer

METRO 2033 Redux
Shared: Atmospheric · Action · Horror

Granny Remake
Shared: Horror · Atmospheric · Stealth

METRO Last Light Redux
Shared: Action · Atmospheric · Horror

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Female Protagonist · Horror

SILENT HILL f
Shared: Horror · Psychological Horror · Female Protagonist

Resident Evil 3
Shared: Action · Horror · Female Protagonist

Dishonored 2
Shared: Stealth · Action · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Horror · Stealth · Singleplayer

Metro Exodus
Shared: Action · Atmospheric · Singleplayer

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

Thief
Shared: Action · Stealth · Singleplayer

Escape the Backrooms
Shared: Horror · Psychological Horror · Action

Half-Life: Alyx
Shared: Horror · Female Protagonist · Action

Amnesia: The Bunker
Shared: Horror · Atmospheric · Stealth

Resident Evil 7 Biohazard
Shared: Horror · Atmospheric · Singleplayer