Deep in the heart of Area 51, Dr. Proton has been hatching his maniacal plan. Fueled by new ego boosts, Duke is ready to take on evil clones, alien queens and anything else that comes his way in order to save the world and his babes! This full, new single-player campaign includes brand new weapons, all-new enemy types and bosses, more Achievements/Trophies and many more interactive items within the world.
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