Well GTA Four had multi-player. I remember doing a bit of it, and they had co-op missions you could do seperate from the main campaign as a group of random thieves. There was also a free roam mold which I enjoyed quite a bit, you could just hang out with your friends or new people in the city and do whatever you felt like doing, start fights, go do stunts at the airport, fly the helicopters, and of course steal cars. Lot of fun and silly memories.
