So if you are over 18 you can sign up to play the BETA version of Final Fantasy XIV Online FREE to test out their BETA. Now remember that the BETA version is bound have boundaries and glitches it is also most likely going to take up a lot of space on your computer.

GO HERE TO TEST OUT THE BETA: http://entry.ffxiv.com/na/index.html
OR IF YOUR MAIN LANGUAGE IS NOT ENGLISH GO HERE: http://entry.ffxiv.com/