if you can't see the prices I will tell you them the first dropper Is free the second dropper is 50 the third one is 120 the fourth is 500 the fifth is 900 and the sixth is 2300 and the square is the conveyor and thats 600 the blue buttons are upgrades for the out put and they are 2000 each
dropper 4,5 and 6 work you just can't see the squares for some reason
