Castlevania II: Simon's Quest is a 1987 action-adventure game developed and published by Konami for the NES. It is the sequel to the original Castlevania. The game follows Simon Belmont as he embarks on a quest to destroy Dracula once again. The game world is expansive and non-linear, with plenty of exploration and backtracking.  Konami's emphasis on creating an atmospheric experience using evocative sound and graphical design is seen here. The game features a day and night cycle which affects gameplay.  The game is notorious for its difficulty and obtuse plot, making it a unique entry in the franchise.

Castlevania II English Re-translation (+Map)

Castlevania II - Simon's Quest (Europe)