Money hungry in my opinion. A lot of the puzzles are so so vague that it's basically making you have to purchase clues to proceed. And the clues are at least 15 stars each, and any time you solve a puzzle, you only win a few stars. I like the idea of this game, but I'm going to be uninstalling it. I can't afford to keep buying hints to figure out how you want me to arrange checkers on a checkerboard