What was the first PC game you ever played? (if you can remember or try to remember). I myself can't really remember BUT I have really early memories of Duke Nukem 3D & Command and Conquer: Red Alert. (Best RTS experience / game ever at the time) but I'll go w/ RA1 being the top boss.
Side note: Warcraft 3, Red Alert 2, Simcity 3000 & Roller Coaster Tycoon really kicked things off for my interest in PC gaming, also early memories.