Sony made a surprise announcement at gamescom 2011 this evening, revealing inFamous 2: Festival of Blood for download on PS3 this October. In what sounds like a clear attempt to latch onto the current popularity of Twilight and True Blood, vampires have hit the city and Cole has just one night to save the everyone from the blood-sucking nasties. Sony stated that the game will feature hours of new gameplay.

No firm release date has been set, but Halloween seems like a good bet. Pricing is yet to be announced.