(windows only, unfortunately)
I came across this earlier today, and found it to be so very, very awesome. I can see myself playing in every spare moment and more for the forseeable future. The best part about it is that it's free - no monthly charge, even. The graphics and features suffer, but it has all the primary wossnames of any typical MMORPG and almost none of their issues. It is worth checking out for gamers of any variety. My character is Asc, on the Oobag realm.
Screenshot of progress window.
Why do I have a succubus bra, you ask? Well, I'm just that awesome.