One of the Most Enjoyed Games of 2009, the original Role-Playing Shooter, and all its heralded Add-On Content now available in one Definitive Collection! Expanding and enriching the critically acclaimed RPS experience of Borderlands, the diverse and explosive downloadable add-on content packs: The Zombie Island of Dr. Ned, Mad Moxxi's Underdome Riot, The Secret Armory of General Knoxx and Claptrap's New Robot Revolution offer loads of new enemy types, new missions, new game modes, new achievements and new... surprises