Looks like you didn't find all of the ways to earn money. Did you notice that you can tap the coin to get x10 modifier? If you didn't, it's my fault as the tutorial designer
and to add to that, the current prestige system is broken, it goes from 1 point (very fast) to 5 points/upgrade and to 10,... The first tier takes minutes to get and the following tiers take hours/days and are hardly worth the investment.
Later prestige stages should have upgrades that increase all generator production by a flat amount instead of having more increase/build generators.
The game slows down so much it literally gets boring and tedious because you're not even able to buy higher tier generators because it takes an eternity to have enough pixels to be able to buy them.
later towers should either be less expensive to buy or do more damage/tier. Right now they're virtually useless and it's actually better to just keep upgrading your first tower (once you have snowblower).
Game needs some balancing. Things go rather fast. Aura needs balancing as well, you can literally go back to boss you already beat and charge your aura in a matter of seconds. So it's basically an unlimited recourse at the moment
It would be cool if the museum would be a bit more organized so you can see what you're missing. For example first all the 1 leaf mutations then all the 2 leaves etc.
The music shortcuts on my keyboard (play/pauze, stop, .... (logitech G910)) somehow interfere with the game. Some buttons cast spells when i press them others open the spell menu, so far I haven't found anything on my end.
It would be cool if the skulls were actually worth something. When you need a few billion or trillion skulls and you only get 50 million/skull you need to idle for a loooooong time, longer then i like to idle.
Another comment: just a minor bug. When you conveyor belt connected to a foundry (dunno about sellers) they lose all their stock( that's pure waste of valuable resources)
Switch to steel as soon as you can afford it. But make sure your at 100% production. Unlike iron production steel costs x amount of money per tick. So until you buy upgrades that means 2 steel foundry's for 1 steel seller. So its best to wait until you can buy 2 steel foundry's 4 coal buyers and one seller.
Looks like you didn't find all of the ways to earn money. Did you notice that you can tap the coin to get x10 modifier? If you didn't, it's my fault as the tutorial designer