Duke Nukem 3D was the first game for which I designed user-maps. I was given a copy of Duke Nukem 3D: Atomic Edition, and quickly discovered the Build editor (This was back in the Windows 98SE days, mind you, when DOS programs worked with minimal futzing about). After quite a bit of experimenting, I released my first map (ever), EDF Base. Several other mediocre and similar maps followed, until I got bored of Duke and went on to something else.
Recently (Mid 2009), I rediscovered Duke Nukem 3D, due to the wonderful Eduke32 port for Windows/*nix platforms (See the Duke Nukem Resources page to the right), and released a map to break my long 'retirement' from mapping.
In the interest of not burning out the eyes of the humble viewers, I will list only my modern maps. My old maps can still be found at places like
the Duke Nukem Repository
Most recent maps first.