"Playing" system is flawed
I love the new Dragon Story! Animations are great, there is a lot of complexity to the game, the speed is great.
The social interaction was not well thought through. With a level limit on the number of habitats, there are not enough places for visitors to play. At best, I have to visit 3 islands to be able to play once --and there may be only one habitat available to play. I visited 130 islands today and only raised my egg rating from 3.4 to 3.6. That is mostly because there are so few habitats to play. I have to keep returning to my island to clear the habitats. This works on a Saturday, but won't on Monday when I go back to work.
I suggest not having the dragon's be "tired" until the cash limit of the habitat is full.