Hi, thanks for the feedback, I will be updating the game and tweaking the balancing/content for higher zones soon. Currently, I am going to be working on improving the achievement rewards to make them more useful and change some of the flat gold rewards to passive rewards, which hopefully indirectly makes the game better paced as well.
I think while playing on characters you should be able to see fame bonuses while your still alive, to see whether you've done enough of a specific task to get that fame bonus.
 "SPACEPLAN Prototype"){kind=icon}
 "Kong Pong"){kind=icon}
 "Pinny McBallface Pinball"){kind=icon}
 "Escape from the Planet of the Dravids"){kind=icon}
 "Shop Empire Underground"){kind=icon}
 "Enchanted Heroes"){kind=icon}
 "Trap Master"){kind=icon}
 "Down is Up"){kind=icon}
 "Learn to Fly 3"){kind=icon}
 "Swords and Souls"){kind=icon}
 "Death Arena Reality Show"){kind=icon}
 "Tough Love Machine"){kind=icon}
 "Realm of the Mad God"){kind=icon}
 "Bubble Tanks 3"){kind=icon}
 "Coinbox Hero"){kind=icon}
 "Doodle God"){kind=icon}
 "Dawn of the Dragons"){kind=icon}
 "Button Upgraders!"){kind=icon}
Hi, thanks for the feedback, I will be updating the game and tweaking the balancing/content for higher zones soon. Currently, I am going to be working on improving the achievement rewards to make them more useful and change some of the flat gold rewards to passive rewards, which hopefully indirectly makes the game better paced as well.