Ravenloft is a Dungeons & Dragons campaign setting which is noted for its fictional Gothic-inspired characters from horror literature and history. The original Ravenloft module was published in 1983 after years of play-testing.
There is also a board game, Dungeons & Dragons: Castle Ravenloft Board Game, based upon this setting.
The original Ravenloft setting was Barovia - a bit of a fantastical Transylvania.
D&D Ravenloft fan