I'd say try Silk Road Online out. You can find it at silkroadonline.net. One warning though.....its frustrating trying to log in.
Any like fighting games? Like not mission fighting games, but vs fighting games. Maybe street fighter or something
just search these in google: Flyff, Maple story, rappelz, last chaos. if you type mmorpg top lists in you get a lot of sites with free games
for fighting your probably looking for gunz the duel. once Kwon Ho hits open beta you might wanna check that out. otherwise google streetfighter online.
www.graalonline.com It's the best online game. It's free to play around, but you have to pay to save progress. It's still fun though, and I would buy the gold version if I had the money.
Knight Online is a really good free game that you can download, it is MMORPG, I do not know the full website, however I am sure you can find it if you search for it on google.com.