The Siege Ram is an upgraded version of the Capped Ram in Age of Empires II. The wet hides have been replaced by metal roof armor for increased durability and strength. It is stronger than the Capped Ram and can hold six footmen (Infantry or Archers) instead of four. Like other Rams, garrisoned units will increase its movement speed and attack power against buildings. The Siege Ram also has a larger damage radius and is devastating against walls and clusters of buildings. Like the Siege Onager, the Siege Ram is not available to many civilizations, so it is advised to be used whenever possible. The Celts and Mongols can especially make use of the Siege Ram effectively with their unique technologies. A fully-garrisoned Siege Ram is powerful enough to devestate any building or defensive structure without being being destroyed itself, but is still somewhat limited in its effectiveness against Bombard Towers.
Siege Rams deal 176 base damage against buildings +10 damage per garrisoned unit.