I have a book of game design.
Let me help you a bit:
What do you want the theme to be on?
Is it experience based, or truth based (that is, an moral that everyone believed in, like "Love always triumph everything, no matter what happens" (in a romantic story) )?
Also, I have the full version of the software, with a lot less limitations and the ability to customize the game using a real scripting language (like, you could make the battle system resemble Pokemon, resemble Final Fantasy, etc.).
Let me know if you need my help.