Capcom has announced that Dead Rising 2: Case Zero will be available on August 31 exclusively on Xbox 360 via Xbox LIVE Arcade at a cost of 400 MS Points.

A stand alone piece of content, Dead Rising 2: Case Zero acts as a prologue, introducing players to the main protagonist, Chuck Greene, and provides a glimpse of the action to come in Dead Rising 2.

Set two years after the Willamette incident chronicled in the original Dead Rising and three years before the start of Dead Rising 2, Chuck along with his young infected daughter, Katey, find themselves trapped in the zombie infested desert town of Still Creek. It's up to Chuck to find a way out of town, and locate the Zombrex Katey must take to prevent her from joining the ranks of the undead.

Just like in the full game, players in Dead Rising 2: Case Zero will use Chuck's handyman skills and a roll of duct tape to combine two items to create powerful combo weapons. Not only do combo weapons make killing zombie sprees more fun but they also have the added benefit of earning Chuck additional 'Prestige Points' which in turn result in quicker levelling up.

Character attributes earned in Case Zero, such as 'Player Level' (to a maximum of five), 'Prestige Points' alongside skills, 'Combo Cards' and a number of alternate outfits, will be carried forward into Dead Rising 2.

Dead Rising 2: Case Zero is scheduled for release August 31, followed by Dead Rising 2 on October 1.