Acts and knowledge related to siege engines, including examining, analyzing and working most parts of the vehicle. Siege engines examples include: Ballistae, battering rams, cannons, catapults, siege towers and trebuchets.
Siege engines are large tools that are designed to break or circumvent heavy fortifications like castle doors, thick city walls or ship hulls in siege warfare. Some siege weapons can also be used on the battlefield as a larger ranged weapon, mainly helpful in breaking up formations and demoralization.