Age of Empires Series Wiki
Info icon.png
This article is about the technology in Age of Empires II. For the technology in Age of Empires IV, see Siege Engineering.

Siege Engineers is a technology in Age of Empires II that can be researched at the University once the Imperial Age is reached. Once researched, it increases the attack of all siege units (including Ballista Elephants) against buildings by 20% (+200 for Petards, +40 for Flaming Camels). It also increases the range of all ranged siege weapons by 1.

Some civilizations have either bonuses or unique technologies that increase the range of a type of siege unit; Koreans have Shinkichon, which increases the range of Onagers by 1, and access to Siege Engineers; as a result, they have the Onagers with the longest range. The Khmer team bonus gives +1 range for Scorpions, and they have access to Siege Engineers; as a result, they (and their teammates with Siege Engineers) have the Scorpions with the longest range. Tatars have Timurid Siegecraft, which increases the range of Trebuchets by 2, and access to Siege Engineers; as a result, they have the Trebuchets with the longest range and the unit with the longest range in the game; and despite lacking Siege Engineers, Turk Bombard Cannons have the longest range, thanks to Artillery which gives +2 range.

Despite lacking Siege Engineers, Burgundian Bombard Cannons deal more damage than other Bombard Cannons with Siege Engineers (outside of the Houfnice), since the Burgundian civilization bonus granting +25% attack to gunpowder units applies to attack bonuses as well.

Technology availability
Available Unavailable

Civilization bonuses[]

  • Portuguese: Siege Engineers is researched 30% faster.

Team bonuses[]

  • A team containing Malians: Researching Siege Engineers is 80% faster.


The Forgotten[]

  • Magyars: Cannot research Siege Engineers.

Rise of the Rajas[]

  • Magyars: With patch 5.5, Siege Engineers was added to their technology tree.

Definitive Edition[]

Dawn of the Dukes[]


Men who specialized in designing, building, and operating siege weapons were called siege engineers. These weapons were marvels of their age and complicated to operate. Hitting a narrow stone wall from a distance with a plunging stone shot was a difficult problem. Kings prized men who could solve it.