Which is the oldest game you're still playing today :)

Doom, Splinter Cell, Sonic 1-3, MGS1, and a bunch of others throughout that era. Yeah I often find time to go back to the classics.

I tend not to revisit older games because there are so many others that I want to play and don't have the time for. But, I did play Pokemon Crystal recently using an emulator

Well I just resubscribed to Neopets, so that's pretty old LOL

Star Wars Republic Commando for me. Even though the servers died a long time ago, I lile playing custom games with my buddies from time to time. It was a really great game.

i play WoW every now and than, mainly play Cod though

I would have to say it is GTA. I will play old 8-byte games for fun, but the oldest RPG game I still play is GTA.

Pro Evolution Soccer 6. A very classic for the soccer fans like me!

I played GTA San Andreas and Worms Armageddon again, some time ago

I'm always going back to Mu Online, Eudemons Online, Aura Kingdom and Perfect World.

Probably Age of Empires II, still have such fun nights with friends just doing a big free for all game on that.