It's funny, I thought the 12+ one had more of the "little kid fun" about it than the 5+ one -- there's more about feeding the dragon and making him grow, explaining that part, where the first one didn't really explain. DD7 didn't have any problem figuring out that the dragon was going to grow every few problems, though.

But the 12+ one is definitely trickier, as it moves along. I like them both!