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Duke it out in D.C. (DOS)

Duke Nukem 3D: Duke it out in D.C. DOS
Genre: Action, FPS, DLC / Add-on
Perspective: 1st-person
Gameplay: Shooter
Interface: Direct control
Add-on: Story / mission
Setting: Sci-fi / futuristic
Narrative: Adult, Comedy
Published by: WizardWorks Group
Developed by: Sunstorm Interactive
Released: 1997
Platform: DOS

Another addon, this time the aliens have taken over the White House, and, in fact, the game begins with cleaning it from Pig Cops, and so on throughout the entire internal structure of the United States, including secret research bases, military and not only buildings and simply memorable places...