Treason is a technology in Age of Empires II that can be researched at the Castle once the Imperial Age is researched. Once researched, it reveals all enemy Kings for a short time. It is only available in the Regicide mode and replaces the Spies technology. Treason is the only technology in the game to be temporary and researchable multiple times. It is researched almost instantly.
Treason is one of the most important technologies in Regicide games as it tells players where to mount their offensives and allows them to plan ahead.
- Treason is a crime against the state. In the context of the Middle Ages, treason is closely linked with kings since most governments in the Middle Ages were monarchies.
- Apart from Loom and the advance through the Ages, Treason is the only technology not to be affected by the Chinese civilization bonus, which reduces the cost of all other technologies (including Spies).
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