Duke Nukem II was released for the MS-DOS platform, expanding its availability to personal computers running DOS.
The game was ported and released for the Game Boy Color, allowing it to reach a wider audience on handheld consoles.
Duke Nukem is captured by the alien invaders and imprisoned aboard their orbiting space platform.
Duke fights his way through the alien space station and escapes captivity.
Duke returns to Earth and begins infiltrating the alien base to gather intelligence and sabotage their operations.
Duke Nukem systematically destroys several alien bases to thwart their attempt at Earth domination.
Duke confronts and defeats Dr. Proton, the alien leader behind the invasion.
