"Castlevania" is largely set in the eponymous castle of Count Dracula, the main antagonist of the Belmont clan of vampire hunters. It debuted with 1986's "Castlevania" for the Nintendo Family Computer Disk System. The first entry and the majority of its sequels are side-scrolling action platformers, and were succeeded by the 1997 game, '. Originally released for the PlayStation, it returned to the nonlinear gameplay seen in ', which introduced RPG elements and exploration. Several installments later adopted "Symphony of the Nights gameplay, and along with "Super Metroid", it has popularized the Metroidvania genre. 2010 saw the release of ', a 3D action-adventure reboot of the series developed by MercurySteam and Kojima Productions.