Engineering is a researchable technology in Age of Empires that increases the range of all siege units and Siege Ships by 2 points. It is researched in the Government Center and is needed to research and build the Juggernaught. It can only be researched once the player reaches the Iron Age. Researching this technology is important if the player's civilization specializes in siege weapons since it is the only way for Helepoli to outrange Iron Age towers with the exception of the ones built by the Choson and the Mirror Tower.
Age of Empires
The Rise of Rome