Tyranny is a Imperial Decree that causes 10% of all resources gathered in the realm to be taken as a tax and then the Emperor receives a cut of it. Trading Post will have -1 trade offer(s) and Throne of Might attackers will get -30% Army Attack. The Emporor will only receive the tax every 24 hours, and the tax will be limited to 10 million for each resource type.

When this policy is chosen the emperor will not be liked very much and it will be harder to gain points with the Supplies and Merchant's Challenge Events.