I have been role-playing since I was 8 (1980), and oddly, started with Chivalry & Sorcery, in a game run by my father for my older brother (3 years older) and his school friends.
I recall it well, as given I was the snotty little brother, I was picked on mercilessly. Until eventually one of my brother friends, Alex, decided he had had enough of my grumpy axe-wielding dwarf (I was only eight), who tried to assassinate me in a bar.
Sadly it did not end well for Alex, as his first (and only) strike failed dismally, and my dwarf, Thorin (...I was only eight!...), spin on his heel, whipping out his double-handed axe and struck the unfortunate rogue with not one, but two critical strikes.
No one gave my Thorin any trouble after that!
Since then, role-playing has been an important part of my life, and I have GM'd way more games than I have played in. For some reason I have a reputataion of stitching my players up. I have no idea way.
I run mainly fantasy games, having GM'd all the incarnations of Dungeons & Dragons, MERP, Rolemaster, and my favourite, Chivalry & Sorcery. Plus, my players and I have ventured into sci-fi, mainly in the Traveller universe, but also in the universes of Babylon 5 and Battlestar Galatica, and the strange reality of Roger Zelazny's Amber, which is just awesome!
There have been many others, some of which I have enjoyed quite a bit, like The World of Darkness systems, and others, not so much, i.e.: Call of Cthulu and Paranoia.
Click on the below to see some, hopefully, interesting content on all the games listed.