Midas Touch seems to require 2500 stone to research even though it's not consumed. Without the stone trying to research it fails. Could you change the color of the placement of level 2 buildings if they are replacing a existing level 1 building?
I am unable to save my game. This is not a problem I have with any other flash or unity game on Kong. For the update you're working on I'd like to suggest upgrade paths for harvest speed and harvest range.
That's odd, I made this game using HTML5 which saves all progress using your browsers local storage. Perhaps you have this blocked or disabled? What browser are you using, I can test it on my end to see if I can replicate your problem. Thanks for the heads up.
Then it wouldn't have the fun abbrev IOU =p IUO just doesn't have a ring to it. -Ray