All of this is great feedback, thank you so much.
You could probably guess i havent playtestet some of these upgrades and game cycles as much as i should have. I will tweak all of it, i did notice myself its possible to reach end game and not have a bunch of the upgrades.
question; do you think that is a problem, that all upgrades arent needed, or should the game be paced in a way that it should force the player to buy all upgrades to get to the end?