Late game stagnates and becomes impossible to advance. Once you hit lvl 10 you have to keep playing it to make coins. Lvl 11 (endless plains) drops the rewards chest(s) back to lvl 0 (should be 70+ and pay a lot👎) and it pays the same as lvl 1 when you just started the game. At this point it takes so many runs to afford each upgrade, the only real option to advance is pay $$ for gems to convert to enough coins to pay for upgrades to get farther. Its just pointless now. Fix it or I'll uninstall.