<geek hat on> Ooh, I play a lot of computer games and have done since the days of the old ZX Spectrum in the 1980's.
1990's : Superfrog, Adamms Family, Monkey Island I and II, Quake II (which I finished in 2 weeks much to my ex's annoyance), The Settlers I, II ( I first played Settlers on The Amiga) and III, Rollercoaster Tycoon, Rayman, Jazz Jackrabbit, Age of Empires I II and III and many more.
2000's : Too many to mention. These days I tend to play games that I buy from Big Fish Games. They are more orientated towards puzzles and thinking things out, I was never big on war games, apart from Age of Empires, and I never got into WoW. I recently bought Rollercoaster Tycoon for Windows XP and it's just as good as I remember it.
This is a snapshot of my current desktop and it's icons, as you will see most say 'Play...', those are games and a fraction of what I own. Nice idea for a thread,