Final Fantasy XI

The story is set in the fantasy world of Vana'diel, where player-created avatars can both compete and cooperate in a variety of objectives to develop an assortment of jobs, skills, and earn in-game item rewards. Players can undertake an array of quests and progress through the in-game hierarchy and through the major plot of the game. Since its debut in 2002, five expansion packs have been released[4] along with six add-on scenarios. Each expansion pack and add-on brings a new major storyline to the Final Fantasy XI world, along with numerous areas, quests, events and item rewards.

Source: TheGamesDB