Ballista Tower

The Ballista Tower is a type of defensive structure in Age of Empires and its associated expansion packs.

It is the upgrade of Guard Tower, that is researched from the Granary. Unlike its preceeding towers, the Ballista Tower fires missiles similar to that of the Ballistas, Heleopoli and Triremes. This means that it has a considerably lower rate of fire, but has a much higher amount of Attack Points (20 compared to the Guard Tower's 7). The upgrade is very expensive, but pays off. To build, they cost 200 Stone.