World of Darkness is a series of tabletop role-playing games, originally created by Mark Rein-Hagen for White Wolf Publishing. It began as an annual line of five games in 1991–1995, with Vampire: The Masquerade, Werewolf: The Apocalypse, Mage: The Ascension, Wraith: The Oblivion, and Changeling: The Dreaming, along with off-shoots based on these. From Wikipedia