
This game is rated ESRB: Mature 17+ for Blood and Gore, Intense Violence, Mature Humor, Nudity, Strong Language, Strong Sexual Content and Use of Drugs and Alcohol.
Developed by Triptych Games and released in 2011 for PlayStation 3, Xbox 360, PC, and Mac, The Doctor Who Cloned Me is a downloadable expansion for Duke Nukem Forever. Set deep within Area 51, the campaign pits Duke against the schemes of Dr. Proton, including enemy clones, alien queens, and new boss encounters. The expansion introduces fresh weapons, new enemy types, additional interactive objects, and expanded ego boost mechanics across a full single-player campaign. On the multiplayer side, four new maps are included: Sky-High, set in alien-occupied Las Vegas office towers; Command, an EDF facility built around an imprisoned BattleLord; Drop Zone, a rooftop combat arena atop Duke's Lady Killer Casino; and Biohazard, which takes place across the floors of a nuclear power plant. All maps support the base game's retail multiplayer modes, with additional modes available to owners of the prior Hail to the Icons Parody Pack add-on.
