Gunpowder Trails & Gunpowder Stashes
Using gunpowder produced by your gunpowder workshops, you can place chained gunpowder trails and gunpowder stashes around your castle.
Archers on walls, towers and gatehouses can launch fire arrows, setting them alight and causing a chain reaction along the adjoining trails and stashes. Gunpowder trails inflict fire damage to any troops, enemy or allied, standing nearby and gunpowder stashes inflict massive damage to anyone standing near them when they explode.