I played D&D more or less by myself as a kid. I’d make up adventures and then just run through them. I tried to get some friends to play, but was met with some resistance from their parents. I also liked those choose-your-own-adventure type books that had you roll dice for encounters and fighting monsters. Eventually I started to collect the D&D comics, and that evolved into a huge comic addiction.
I finally got to role play again when I started a Star Wars campaign (D6 based by West End Games). We had a lot of fun there, mixing in other scifi characters like the Predators. I made good friends with the guy at the comic shop and would role play at his house until 3am on Wednesdays. We played mainly Vampire the Masquerade, some Star Wars, and probably the best campaign I’ve ever been on that was in Shadowrun.
In college I only got to play a handful of times really, but had some fun with Warhammer (the RPG, not the miniatures), Rifts, Palladium, and Star Wars. I haven’t got to really role play in along time. I started to get with a group of the newer D20 style Star Wars, had a pretty cool character, but I got busy and sort of flaked it off.