Vampire: The Masquerade is a tabletop role-playing game, created by Mark Rein-Hagen and released in 1991 by White Wolf Publishing, as the first of several Storyteller System games for its World of Darkness setting line. From Wikipedia
The game's narrative designer, Arone Le Bray, details plans for a complex, branching narrative that adapts to player choices, while main character Phyre offers more customization options including choice of clan and gender, amid turbulent development history.