First PC game i ever owned was Knights of the Sky
first game i played on PC, uh it's hazy but it was probably Alley Cat (that's the only one i remember)
First multiplayer game, Jedi Knight! hah that game kicked ass, even on 28.8kb dialup, ahh. Also was playing Diablo and Xwing v TIE Fighter at the same time.
I remember the demo for MDK, never got the game though, you had that crazy flesh parachute thing.