Translations:Andere Gebäude/18/en

10 trolls produce 40 stones in a region. Due to the special ability of the trolls

 the supply of the region is only reduced by 30 stones.
 If the trolls are inside a quarry, the supply will be reduced by 15
 Stone.
 If there are only 7 stones left in the region, the trolls can
 only produce 9 stones but 18 in a quarry.