Well, it looks like we've spent so much cash on Yu-Gi-Oh! cards, Konami has managed to, like Dracula, resurrect the long-time series Castlevania back from the grave. This time, it's an IOS App starring Genya Arikado and his assistant Lucy. It also features Alucard, Simon Belmont, Charlotte, Shanoa, and Maria.
If I had to guess, this happened after Dracula's defeat in the Year 2000 but before Castlevania Aria of Sorrow.