I assume this is still a beta as the game lacks polish, direction and motive. The first bug I've noticed within 5 minutes of gameplay was even at -1 horse supply my mills were still giving me the bonus. If you're a newbie at game making, keep pushing and you'll create something great one day! This one is not :)
Thanks for the advice :)
The +/- number by your resources is not always accurate, as it assumes that you have enough resources to keep all your buildings working.
e.g. If you have 0 horses in stock, 1 stable and 2 horse mills: on every tick you will get 1 horse, which will be used by 1 horse mill. The other horse mill will do nothing. But the +food number will be calculated as if both horse mills were working.
 "Lazy Kings"){kind=icon}
 "Madville"){kind=icon}
 "Awesome Pirates"){kind=icon}
Thanks for the advice :) The +/- number by your resources is not always accurate, as it assumes that you have enough resources to keep all your buildings working. e.g. If you have 0 horses in stock, 1 stable and 2 horse mills: on every tick you will get 1 horse, which will be used by 1 horse mill. The other horse mill will do nothing. But the +food number will be calculated as if both horse mills were working.