press the button, number goes up, buy more buttons, more numbers go up up arrow - open shop down arrow - close shop numbers - switch shops (when the shop is closed) all of the currencies interact w/ each other, and upgrade prices increase based on previous upgrades, so it gets more complex as you unlock more buttons. basically this is a clicker game where you actually have to think and optimize.
!!! - currently in development and only has 7 out of a planned 10 buttons, but is fully playable up until button 7. (haven't fully tested buttons 6 or 7)