Addictive. Watch out or this game will take all of your time (and maybe some of your money). It is a bit difficult to play on mobile- much easier on a game console like Playstation where there is definition between buttons. It also drives me a bit crazy that I have to keep zooming out again and again. But the game is well done, graphics are great. I haven't had any problems. Except that I seem to spend too much time playing! It was made in China and they are probably getting data from this game