Games like GGST Additional Character 13 - Slayer
Games like GGST Additional Character 13 - Slayer include Resident Evil Village, White Day: A Labyrinth Named School, MiSide, Conan the mighty pig, and ParanormalHK. We matched them by the tags players give GGST Additional Character 13 - Slayer on Steam (Action, Vampires, Psychological Horror, Sexual Content, and Nudity): closest matches first, and among equally close ones the better-known games.

Resident Evil Village
Shared: Action · Survival Horror · Sexual Content

White Day: A Labyrinth Named School
Shared: Sexual Content · Action · Nudity

MiSide
Shared: Psychological Horror · Sexual Content · Horror

Conan the mighty pig
Shared: Psychological Horror · Sexual Content · Nudity

ParanormalHK
Shared: Sexual Content · Psychological Horror · Nudity

Outlast 2
Shared: Psychological Horror · Survival Horror · Horror

SILENT HILL 2
Shared: Psychological Horror · Survival Horror · Horror

NEKOPARA Vol. 1
Shared: Sexual Content · Nudity · Hentai

KunKunNight
Shared: Sexual Content · Action · Nudity

SILENT HILL f
Shared: Psychological Horror · Action · Survival Horror

Clive Barker's Hellraiser: Revival
Shared: Action · Sexual Content · Nudity

NEKOPARA Vol. 3
Shared: Sexual Content · Nudity · Hentai

Chasing Tails ~A Promise in the Snow~
Shared: Sexual Content · Nudity · Hentai

Devil May Cry 5
Shared: Action · Sexual Content · Great Soundtrack

YOU and ME and HER: A Love Story
Shared: Psychological Horror · Sexual Content · Nudity

Tricolour Lovestory
Shared: Sexual Content · Nudity · Dating Sim

Changed
Shared: Sexual Content · Psychological Horror · Cute

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

NEKOPARA Vol. 2
Shared: Sexual Content · Nudity · Dating Sim

Vampire Mansion
Shared: Sexual Content · Vampires · Nudity

NEKOPARA Vol. 0
Shared: Sexual Content · Nudity · Hentai

Outlast
Shared: Psychological Horror · Survival Horror · Horror

The Song of Saya
Shared: Psychological Horror · Sexual Content · Nudity

Darkwood
Shared: Action · Psychological Horror · Survival Horror