I used to play a lot at a friends house, when I was younger and my parents wouldn't allow me to play on our computer at home. I recently thought about those days, and found one of them to be a free online game called Jagged Alliance Online. We used to love this game
Well I am still addicted to the first Starcraft and I also play a lot of the MAME32 collection although I am still trying to get the full collection of that. Also CIV and UFO rocks. Abandonia fed my addiction for a lot of the retro games of the past.