premise: Castlevania was worked on with the intent of release on the Family Computer Disk System.
hypothesis: Castlevania . The series debuted in Japan on September 26 , 1986 , with the release for the Family Computer Disk System ( FDS ) , followed by an alternate version for the MSX2 platform on October 30 . The Castlevania titles have been released on various platforms , from early systems including the Nintendo Entertainment System to modern consoles . Castlevania , known in Japan as , is an action-platformer video game developed and published by Konami for the Family Computer Disk System video game console in Japan in September 1986 .