Conceivably the first 3-D Sci-Fi MMORPG, Anarchy Online is likely noteworthy for being one of the first MMO's to be able to produce content on demand in the form of missions the players can pull and run through. Still alive after 10 years and 4 expansions, and set on the desert planet of Rubi-Ka, where 2 factions fight for control of the planet and its resources.