After being the fastest-selling title in the Xbox LIVE Arcade, thanks to 500,000 copies downloaded in less than two weeks, State of Decay has now recorded a million copies sold, surely not to be missed for a LIVE Arcade. On the occasion of the announcement of the news, the developer Undead Labs for voice of its founder Jeff Strain, announced that the next DLC titled "Breakdown" is now undergoing approval at Microsoft, so it should be available for download by the end of October.