Great game. I have played a similar game to death on android called Flow Free. I binge the new packs as they come out. The first game/set of puzzles was free and I have purchased and completed every new pack to optimal/5 stars. They're a few dollars each. They release big packs of puzzles with new layouts and also a daily and weekly group of puzzles. Very addicting. I actually wrote them a few years ago asking for more packs to buy. If you haven't seen it before maybe take a look because I think you could do very well with this game you have built.