A brand new downloadable add-on is coming to Duke Nukem Forever next Tuesday, December 13, delivering a new single-player campaign, new multiplayer maps and more!

Titled The Doctor Who Cloned Me, the new campaign pits Duke against Dr. Proton deep in the heart of Area 51. Alongside new enemies and bosses, the add-on packs new weapons and new interactive objects across the new environments, plus new achievements and trophies.

Four new multiplayer maps are also included, which can be played across all of the multiplayer modes including those of the Hail to the Icons Parody Pack:

 Sky-High: The alien-infested corporate offices of Pooty, Inc. near the center of Las Vegas. This map includes three indoor floors taken over by the aliens and two rooftops, jump pads, stairwells, and building-to-building combat.
 Command: EDF command center with an imprisoned BattleLord at its core! A two-level map featuring winding stairs, straightaway corridors, and jump pads
 Drop Zone: Rooftop of Duke’s Lady Killer Casino featuring indoor and outdoor combat and stairwells for platforming, an EDF dropship on landing pad, and a bottomless pit.
 Biohazard: Fight in the Breston Plant Nuclear Power facilities and compete across multiple floors in locker rooms, restrooms with showers, control rooms, and the nuclear waste storage room.

 Releasing Tuesday, December 13, Duke Nukem Forever: The Doctor Who Cloned Me will be available on PC and PlayStation 3 for $9.99, and Xbox 360 for 800 Microsoft Points.