I would have given this game a 5 star rating if it hadn't stopped working. I had no choice but to delete and download it again, only to start from level 1 again. It's a shame considering I have been playing for just a few days and gotten a strong character up to level 60 (as well as a new turret). I hope it doesn't happen again or else I will be forced to delete the game for good. I even restarted my phone, but the phone bricked for good.