Castlevania Harmony of Despair is a platform-adventure game developed for PlayStation 3. It introduces a unique map system that displays the entire quest layout and supports cooperative play for up to six players via online multiplayer. Originally hinted at through a rating in May 2010, the game was officially announced for Xbox Live in the same summer and showcased at E3 2010.
Castlevania: Harmony of Despair is a crossover platform-adventure game that features a new map system which allows players to see the current quest map's entire setup, as well as up to six players at once over Xbox Live. The game was first leaked as an OFLCA Rating on May 27, 2010, then officially announced for Xbox Live Summer of Gaming 2010. Later in the year, the game was unveiled as a playable demo in the Konami booth at the E3 Convention of 2010.