|This article is about the building in Age of Empires. For the building in Age of Mythology, see Ballista Tower (Age of Mythology).|
The Ballista Tower upgrade is very expensive and takes a while to research, but pays off as it increases the DPS of all the player's towers substantially. However, the tower can still be easily destroyed by siege weapons such as the Catapult or the Helepolis which out-range it and can attack it without retaliation.
To build, they cost 150 stone, like all their predecessors.
The Ballista Tower is a common building, and these civilizations can build them:
Civilization bonuses Edit