Please do post any feedback you have about this game. It is a pretty old project I built when initially learning JS, but I'm definitely open to improving/remaking it if there is interest!
Word of advice to everyone stuck: When you reach tier 4 prestige upgrades put all your effort toward the first challenge in the 3rd row, it speeds the game back to a reasonable speed again and make the game a lot more fun.
It's a bit tough to grind that challenge but the reward allows you to complete many more challenges and really up your skill point speed.
 "Active-Idle"){kind=icon}
 "Idle Ants"){kind=icon}
 "Pixels filling Squares DX"){kind=icon}