FFXI employs a Job system similar to that seen in Final Fantasy V and Final Fantasy Tactics. When you create a character, you have to pick a job/class, which defines your characters look, general characteristics, and special abilities. Six jobs are available from the very start of the game (this may change with upcoming expansion packs), but defferent jobs can be unlocked by increasing you characters rank. Charaters can also gain new special attacks and abilities when thier character reaches a certain levels, which can be used once every two game hours.