Being a PC gamer, I'd have to include 'diversity' of my own.
1. Half Life 2
2. Half life
6. Legend of Zelda: Ocarina of Time
7. Garry's Mod
8. Super Mario Advance 2: Super Mario World
10. Need for Speed: Shift
I haven't played all the greatest games of all time, and I won't include them if I don't know what they're like. These are the greatest games that I've played, mmkay?