1. Grrrrr! I had to spend like $2 on Duke Nukem 3D!!!! :P
I bought it in spring when that had it on sale. Lots of memories there, played this a lot when I was a kid (using god mode though, before Half-Life I couldn't really be arsed to play FPSs seriously, they seemed to acrady to me).
The only problem I have is that I have trouble getting used to the old style control scheme; The implementation of mouse look isn't always spot on and Duke moves very fast, which often makes me run into things or fall off ledges.
"In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move." - Douglas Adams