I'm on my 10th sawmill and it'd the same exact thing over and over but with more production needed to get to a new sawmill. Boring game that will ultimately get you nowhere but repeating the same steps. Missed opportunity by not creating different objectives with each sawmill. This is the equivalent of playing a racing game but doing the same lap over and over with no end in sight. Also, make sure not to pay for anything given that the game just repeats itself.