Monte Cook's World of Darkness
A modern dark fantasy/horror RPG¸ a variation of the World of Darkness setting where extra-dimensional horrors known as the Inconnu opened a gate hundreds of miles wide in the central United States. Now one year later¸ the U.S. has collapsed into dealing with its internal problems¸ and horrors stalk the fringes. The Inconnu create vampires¸ werewolves¸ and demons -- while there are also mages and the Awakened (extraordinary humans). It uses a rules variant based on the D20 system¸ where character type (such as vampire or werewolf) functions as both a race and a class. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim"
One year ago¸ eldritch horrors of cosmic malevolence called the Iconnu attempted to destroy our reality. They failed¸ but the attempt left the world in rapidly darkening shadow. Dead souls returned to claim living bodies¸ creating blood-drinking undead fiends: vampires. Bestial spirits came as well¸ to create werewolves¸ and demons formed bodies from worldly matter. Magic crashed back into the world¸ and mages wield its power for whatever purpose suits them. Humans called the Awakened unknowingly keep the darkness at bay. These supernatural creatures struggle against each other and clash in the shadows¸ most attempting to destroy the world¸ but a few fighting to preserve it. And over it all¸ the Iconnu still lurk¸ squeezing the world like an eggshell.
"This book include a complete setting: a new vision of the World of Darkness. Characters play as vampires¸ mages¸ werewolves¸ demons or Awakened and wield frightening supernatural powers against their own kind. The world is the one we know¸ but now much darker: destruction in the central United States¸ nightmares coming to life and beasts roaming shattered cityscapes.