If you want to give the actual game another shot, press f12 and spawn in an extra gold coin (f11 and f10 spawn in silver and copper). I didn't have time to playtest so its a bit unbalanced, but the treasure chest comes in after the king visits every week, so its a game of managing your resources to try and make as much profit as you can without risking running out before the king arrive.
In general one extra gold seems to be enough to get the ball rolling