Hoardings is a technology in Age of Empires II that can be researched at the Castle once the Imperial Age is researched. Once researched, it increases the hit points of Castles by 21%, making them even harder to take down, especially when combined with Masonry and Architecture. Hoardings can be especially handy to players who plan to build Castles for warding off enemy intrusions or building them in enemy territory. Hoardings is even more beneficial for the Franks, Incas, and the Byzantines, who have special bonuses that apply to their Castles.