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Generates resources or artillery automatically. Configure it to produce different things. Can only be sent from the Home City.
—In-game description

The Factory is an economic/military building in Age of Empires III that can only be built by Factory Wagons which can only be shipped from the Home City in the Industrial Age (Fortress Age for the United States). It generates 5.5 food, 5.5 wood, or 5.5 coin (7.15 with their respective improvements) per second depending on the configuration, or automatically trains a Heavy Cannon (Rocket for the British, Papal Bombard for the Italians, Great Bombard for the Ottomans) at no cost. The Factory also provides technologies to improve their resource gather rates and artillery train time, as well as the Imperial upgrade for Heavy Cannons/Rockets/Papal Bombards/Great Bombards.


Factories are best placed in a well-guarded position, because they cannot be rebuilt when destroyed.

Consider the opportunity cost of shipping a Factory as opposed to shipping crates directly. If the civilization has 1,600 crates available for the resource being produced, the Factory will be profitable after about 5 minutes. If the factory is used for less time, crates would be more effective. Likewise, as a rough guide, the upgrades would be worth it if that resource is planned to be made for 3 minutes or more. Consider reallocating Settlers to avoid this if necessary.


Age Technology Cost Effect
Age IV tech tree aoe 3.png
Cannery.png Cannery 250 wood
250 coin
Factories generate +30% food
Water Power.png Water Power 250 food
250 coin
Factories generate +30% wood
Steam Power.png Steam Power 250 food
250 wood
Factories generate +30% coin
Mass Production.png Mass Production 300 food
300 coin
Heavy Cannon/Rocket/Great Bombard train time -25%

Civilization differences[]

Further statistics[]

Building strengths and weaknesses
Strong vs. Nothing
Weak vs. Everything
Hit points Flying Buttress.png Flying Buttress (+20%)
Sight Gas Lighting.png Gas Lighting (+4, European civilizations only)
Resource generation Cannery.png Cannery (+30% food)
Water Power.png Water Power (+30% wood)
Steam Power.png Steam Power (+30% coin)

Home City Cards[]