If you would like to know the plot of each level read on...
East LA
Duke's rest in a motel on his way back home is disturbed by an alien spaceship crashing into a nearby building. Before Duke can say "Holy Shit", aliens teleport into the motel and attack Duke. Duke's going to have to find that crashed ship and find information on the location of the new alien base before he can kick the rest of the aliens' butt...Jailhouse Rock
Having found out where the aliens are breeding new warriors Duke has gone to kill 'em all. However the aliens have sent three of their best warriors to protect the alien plans...A Fistful of Dollars
With the promise of alien technology and exclusion from slavery the aliens have employed the services of some corrupt businessmen to aid the alien invasion. This really pisses Duke off, especially as he came to the aid of another bank. This time he's giving no such help, and the aliens look like they're planning a double cross with the help of some C9 explosives...Nuclear Age
The only power that can satisfy the aliens' technologies demands. Duke has to shut the operation down, but he has to get in first, and then find a way of overriding the security systems.Cult of Evil
Using the easily swayed minds of vulnerable cultists the aliens use their place of worship as a new base of operations after the destruction of the offices near the bank. Near to the power plant their needs are satiated and they can start teleporting in assistance. The fear of the cult has managed to keep people away so far. Duke has no love of cults either but he dislikes aliens even more...The Final Conflict
Duke's penetrated the aliens' base and now all that stands between Duke and success is the final remains of the thoroughly defeated alien army; send them to hell. And then get some goddamn rest.Secret Levels!
Suburbia
Having stumbled across the site for the beginning of a geothermal energy production system Duke has found himself of the other side of town after making a hasty exit away from the alien guards. Now Duke finds himself in a decaying suburban environment and has to get back on track to thwart the alien plans.....Time Warp
Finding the remains of one of Dr. Proton's time machines in the hands of the aliens, Duke activates it and finds himself 100 years in the future. Worse than that, the aliens have taken over the future and Duke is claimed to be dead! You have to find a way to get back to stop this from happening!
P.S. If you don't know who Dr. Proton is play the original platform
game! You can get the shareware version from lots of places.
Incubation - Alien Apocalypse copyright ©1998-1999 James Hollidge
and Edward Clarke
Duke Nukem 3D copyright ©1996 3D Realms Entertainment