The wait is finally over, we now have a confirmed release date for Castle Crashers PSN. August 31st, 2010 you can spend that $15 that’s been burning a hole in your digital wallet on Castle Crashers. For those that already owned the Xbox LIVE version, there are a few incentives to re-purchase this one. First and foremost the entire game has been optimized in its transfer over to PSN.
Not to say Castle Crashers was ever broken, but the controls have been streamlined, the visuals have been ultra-polished, and the game just works in every way. The other benefits are a Volleyball mode, and other (still) unannounced goodies that have been promised for the PSN version of the game.
Source: Blog.us.playstation.com