I'm afraid we don't currently offer a downloadable version, and we don't currently provide a mechanism to change or edit the code.
That said, you're able to add and define your own custom games (though FF 14 needs to be added to the official list) by heading to Admin > Games > Games.
Thanks for your response, do you think I can call some functions from a different site or print specified parts of the screen in my site. I want to make a site for my game that merges its users with the dpksystem users, then add menu sections which show lets say, the dkp system player roster, but I dont want my visitors to leave my site, I want them to view it from within my site.
Is there a way to extend the functionality of your system like me being able to program plugins??? or do you have any joomla integration??