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Kataparuto (Japanese: カタパルト, katakana for "catapult") is a technology in Age of Empires II: The Conquerors that is unique to the Japanese and can be researched at the Castle once the Imperial Age is reached. Once researched, it allows Trebuchets to pack and unpack 4× faster, and fire 33% faster.


Kataparuto lowers the pack/unpack time of Trebuchets from about 11 seconds to about 3 seconds, and it also allows them to fire 33% faster. Trebuchets become a lot more versatile as they win the chance of retreating due to their faster packing speed. Their faster firing rate also means that they can take down enemy buildings faster, and become valuable in defense.


  • This technology, and the description thereof, is completely against the real history. In the real world, the Japanese had practically no siege weapons before the arrival of gunpowder, nor did the word kataparuto ("カタパルト") exist before modern times. Medieval Japanese castles were usually wooden hillforts, so it was neither necessary nor practical to operate heavy siege equipment in the squidgy hills, where these forts were typically located.
  • Furthermore, the name itself is simply a localized version of the word "catapult", and does not provide an explanation for the shorter time needed to set up and break down the siege weapon.


For most of the period when the samurai traditions dominated Japanese life the conduct of the individual warrior was the focus of their culture. When more pragmatic men came to power, they put greater emphasis on the effective employment of large armies, often including men of low social rank. New technologies were embraced, most notably the firearm, but also better siege weapons to force enemies from strongholds. The last great battle of samurai was forced by a siege that made a stronghold indefensible.
The Conquerors manual