It's a well made demo for sure, it's balanced well, and it's fun to play, the only reason it isn't 5 stars, is because more scenarios would be fun, along with it lasting long enough to fully upgrade everything. Like potentially after paying the army to stay away they decide to invade anyways, and send another dragon after you defeat the first one, or maybe the church does after changing religions. Either way though, it's definitely worth a play-through!