The game was the first Castlevania title for which Michiru Yamane composed music.
Writer Toshiki Yamamura also took creative liberties to craft what he viewed was a new chapter in the Castlevania saga. In this sense, the gameplay was made more fast and action-oriented. The development team approached Bloodlines as a unique Castlevania experience tailor-made for the Genesis. Players take on the role of Quincey Morris' son, John, and his friend Eric Lecarde to take up the fight against evil.
A vampire named Elizabeth Bartley is orchestrating the beginning of World War I as a sacrificial war to bring her uncle, Dracula, back to life. The game is a gaiden to previous Castlevania series entries, set in a different era with new characters. Castlevania: Bloodlines, known in Japan as Vampire Killer and in Europe and Australia as Castlevania: The New Generation, is a platform game developed and published by Konami in 1994 for the Sega Genesis.