2K Games Doubles Your Pleasure with Borderlands™ Double Game Add-On Pack Available Now 2K Games announced today that the Borderlands™ Double Game Add-On Pack featuring the grisly The Zombie Island of Dr. Ned and the challenging Mad Moxxi’s Underdome Riot is now available in stores in the UK for the Xbox 360® video game and entertainment system from Microsoft and Windows PC for £19.9... more.