It's basically several big worlds which are completely player run. All characters are real players as is all interaction and all decision making. Some of the worlds have been going on for years and years with entire histories, religions rising and falling, realms changing and warring, rebellions etc. You can start as a nobleman or a commoner and then work your way up the social lader until you possible end up being king, or another leading position in your realm.
Anyway I jst discovered it, apparently it's even used by sociology and political students to study how things work. I must mention that there is a strict RP, which means no l33t speak or any of that kind of stuff. I play in Dwilight in the Republic of Barca. Before you decide to make a character you should read up on it a bit and read the forums.
http://www.battlemaster.org
Let me know if you decide to play
