Resources - Changing the hiring cost of creatures.

Ultimately, in each new game, you can act according to the circumstances: if there is a shortage of resources, buy the first upgrade option for creatures; if there is an abundance, buy the second option.
All of this needs to be tested on a dozen diverse maps with different difficulty levels. And then adjust the prices if the test shows that it is necessary. I think that's how it should be done. ... In general, I liked the author's idea.