Buildings and their requirements

Buildings produce resources and unlock actions such as researching and training troops or trading at the market. Available buildings::

Open the Castle to construct or upgrade buildings. Resources are deducted when you place an order. Cancelling an order refunds its base resource cost; any building queue surcharge is not refunded. One construction job runs at a time in each settlement, and up to ten jobs can be queued. The first three queue positions cost the standard price; from the fourth onward, an increasing surcharge applies. Jobs finish in order. With Ruler’s Office, the queue is unlimited and no surcharge is charged.