A Game Master, commonly reffered to as 'GM' can be found throughout the world of Vana'Diel. Game masters are actual employees of Square who get paid to Moderate the game and catch any cheaters or hackers or just people causing troubble. They get the best equipment, armor, and jewlery in the game making them the most powerful character (well player character that doesn't actually play).

You will rarely see a GM having a conversation with others, unless he is helping them with something like a complaint or telling them about a fault that has been located. What you have to do to become a GM is goto Playonline's Final Fantasy XI site and fill out an application form and send it to them. They may be accepting applications when Final Fantasy XI comes out in North America. Please not that the last time that I checked, the form was in Japaneese.