In the city

• Building or system to hide a certain amount of resources from incoming attacks. This system will be countered by sieges that will destroy it.

• Technologies in the blacksmith to enable new troops and receive specific benefits for certain units.

• Wall, main defensive structure that must be destroyed or whose gates can be opened with rams.

• Manufacturing workshops, where you can process materials collected from the map to create items necessary for researching technologies, upgrades, or completing missions.