Castlevania: Symphony of the Night

Castlevania: Symphony of the Night, originally released in Japan as Castlevania: Nocturne in the Moonlight (悪魔城ドラキュラ X 月下の夜想曲) (often abbreviated as SotN in some regions), is the first  game released by Konami for the PlayStation and Sega Saturn and started the new style of Castlevania games known as "Metroidvanias", which were action-adventure games rather than traditional platformers.

The main protagonist is Alucard, son of Dracula, and ally of Trevor Belmont 347 years earlier (in Castlevania III: Dracula's Curse). Symphony of the Night (SN) is a direct sequel to Castlevania: Rondo of Blood, taking place five years later. Dracula's castle has mysteriously returned ahead of schedule and the Belmont on "Vampire Killer duty" has vanished. The imbalance in the forces of evil awakens Alucard from his eternal slumber, who sets off to investigate.