Urban area

Industrial area:
Industrial areas are the primary  producer of the country.

Residential area:
Residential areas boosts the city's population.

Military camp:
Military camps can initially only produce Infantry units. With Cavalry and Archer units being unlocked after building the Stable and Archery range respectively.

Defense area:
Defense areas boosts the combat capabilities of garrisoned units.

Port area:
Ports are primarily used to outfit troops with warships capable of fighting enemy ships and/or besieging enemy cities. Ports also provide additional ' and ' output.