You've inclued the basics of a sim rpg, that is fine.
However, you need to explain in more detail the code. For example, when you try to expalain the text tell what a dynamic box is, how it works. Give the user watching more to work with so when they make their own game they have a solid idea on how to do it.
What you did is actually pretty good (although the people below me have rated it poorly). It says the basic concept of a sim rpg.
BUT YOU NEED TO EMPHASIZE! Make another tutorial or further this one to explain more of the and some of the extra little things.