Don't mean to rattle your project or anything. From what I've already seen you and your team are doing a fantastic job, but there's obviously a small issue with using GraalOnlines content. You can become familiar with the rules
here. (Look at line eight of the "Files and Content" paragraph)
If you're going to start developing this offline away from Graal, then you'll really have to go from scratch, and that's something you're not doing. Just pointing that out because if it gets to a stage were it's playable and ready for you to do
whatever with, you will most likely run into this.