These are the buildings, units, and technologies available for the Knights of St. John in Age of Empires III.
Town Center[]
Units
Upgrades
House[]
No units or upgrades are available.
Market[]
Upgrades
- Hunting Dogs → Steel Traps
- Gang Saw → Log Flume → Circular Saw
- Placer Mines → Amalgamation
- Blunderbuss
- Great Coat
Mill[]
Upgrades
Livestock Pen[]
Upgrades
Dock[]
Units
Upgrades
Outpost[]
Upgrades
- Frontier Outpost → Fortified Outpost (requires a Home City shipment of the special Fortress Age Heavy Fortifications card)
Wall[]
Upgrades
Church[]
Units
Upgrades
Barracks[]
Units
Upgrades
Stable[]
Units
Upgrades
Artillery Foundry[]
Units
- Hoop Thrower
- Mortar
- They are granted access to the Mortar earlier in the Fortress Age.
| Technology trees in Age of Empires III | |
|---|---|
| Civilizations | |
 Aztecs ·  British ·  Chinese ·  Dutch ·  Ethiopians ·  French ·  Germans ·  Haudenosaunee ·  Hausa ·  Inca ·  Indians ·  Italians ·  Japanese ·  Lakota ·  Maltese ·  Mexicans ·  Ottomans ·  Portuguese ·  Russians ·  Spanish ·  Swedes ·  United States | |
| Campaign and Historical Battle civilizations | |
 John Black's Mercenaries (Act II: Ice) ·  Knights of St. John (Act I: Blood) · United States (campaign) (Act III: Steel) ·   Black Family Estate |