Late game is a bit too dificult. im usally good at math too but i feel like the jump between ? = 2 and ? + ? x ? = 175 is way too quick.
The progression in 1.2 is designed to shine more focus in late game because it is more engaging,
and early game goes by faster. I did this because I got feedback that the game was "slow",
Luckily the older version is still available if you want to try that (the 1.0 version)
thanks for the feedback :]