Square Enix's Final Fantasy XI has grown into maturity since it was first released several years ago in Japan. By the time the game made it to the States for the PC last year and for the PlayStation 2 earlier this year, it was already stable, home to a large population of players, and filled with tons of content to explore, spread across its vast (though sometimes empty-seeming) world of Vana'diel. Though Final Fantasy XI has its own distinct look and some unique game mechanics, the game clearly follows in the footsteps of predecessors like EverQuest--and not just in terms of the game itself. Like other online RPGs, Final Fantasy XI has now spawned a couple of retail expansion packs. The first, Rise of the Zilart, actually comes bundled with the US versions of the game, and most notably adds some intriguing new character classes (or "jobs") to the mix. The second, Chains of Promathia, is Final Fantasy XI's first retail expansion sold separately outside of Japan, but it's designed exclusively for Final Fantasy XI's most dedicated players, and probably should have been a downloadable update for those players.