Silent Hill Exotica is/was a mythical mod made in 2016 by gunby a.k.a. the wraith. The screenshots from the mod were submitted to theisozone.com, a gaming forum, and resource.
The mod includes many demonic creatures from the Silent Hill game series including Pyramid Head, Faceless Nurses, Closer, Mannequins, Insane Cancer, Lying Figures, and Groaner. The mod replaces normal game loads with nightmares, each nightmare features versions of Vice City turned into a Silent Hill with never-ending fog and demonic attacks from the monsters. It also includes two Silent Hill protagonists, James Sunderland & Heather Mason. Vice City radio stations are replaced by Silent Hill static.
Upon investigating the mod's source, it was revealed that the mod was made only for the Xbox version of Grand Theft Auto: Vice City.