i would have like to have seen more done with those numbers, after completing that one level i expected it to expand upon that idea of creating true equations
maybe add some challenge scenarios and things o unlock from those scenarios. also maybe add some that lets you use the technology, just throwing out some thoughts.
i saw one of the comments saying the upgrading stuff is the worst because it takes so long. i have a solution, make one of the upgrades increase the amount of upgrades you can do at once and also decrease how long it takes. make the first upgrade kind cheap, 500 coins, and then make it a lot more expensive, 5000 coins, to not make it too op for older players