This game is good and solidly built at the beginning but near the end it gets very boring. I've spent countless days and hours going through the same dungeon just to get 1 item and it was doing the same puzzles and just fighting the same mobs over and over again. Once you get to apocalypses plus 20 or 25 that's when it gets impossible for almost every level. I have collected the best gear in the game but still can not beat some levels on the hardest difficulty. There have also been bugs too that can erase all of your gear and items (this has been fixed). But there is still a bug when you try to play 2 players on one device. It basicly keeps everything you have once you log back on solo but it can erase many levels (i have lost over 40 levels do to this glitch).