Age of Empires Series Wiki
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This article is about the building in Age of Empires II. For the building in other games in the series, see Castle.

Used to create your unique unit, build Trebuchets, and improve villagers and buildings.
Age of Empires II description

The Castle is a defensive structure and military building in Age of Empires II that becomes available once the Castle Age is reached. It is an important building in later stages of the game, being a powerful fortification and providing unique technologies and units as well as Trebuchets.

Castles also support 20 population and cannot be converted.

When playing Regicide games, each player starts with an additional Castle near to their Town Center.

Tactics and placement[]

Castles are often built inside minor fortifications outside the player's settlement. Surrounding the entire base with walls along with towers provides additional protection. If a river separates their base from the enemy's, walling up the river's shallows and building a Castle at the shoreline helps to protect from Transport Ships or ambushes. Castles are also of great use at major choke points, especially if Murder Holes is researched. Garrisoning a few melee units to fend off Battering Ram attacks is helpful.

Alternatively, players may build Castles inside their bases, which protects the economy against enemy raiding effectively, while making the Castles less vulnerable against long ranged siege units like Trebuchets.

For Teuton players, researching Crenellations adds +3 range to Castles. This allows them to match the range of Bombard Cannons and (non-Elite) Cannon Galleons, making their Castles more well-rounded, especially on naval maps. Still, long-ranged siege units remain a heavy threat, also because Castles always fire at the closest unit and not the most dangerous or expensive. Consequently, a Castle under attack needs constant attention of the player in order to fulfill its roles effectively.

If running for a Relic or Wonder victory, Castles can become very useful to build up the defense of the Wonder or the Monasteries holding Relics, but the support of other structures such as Walls and Towers is also required. Also, the player must have sufficient numbers of troops (especially cavalry) for countering enemy siege units. In Regicide games, the Castle is a safe (yet obvious) place for the King if properly supported by other defensive structures.

Some civilizations are able to effectively perform a Castle drop, which involves using Castles offensively by placing them near an enemy settlement and then spamming unique units, Petards, and Trebuchets from the Castle.

Attack and range damage[]

An empty Castle is able to fire five arrows at a time, with a base damage of 11 each. Garrisoning either Villagers or archers adds additional arrows to the Castle's fire, up to maximum of 21. One base arrow and 20 additional arrows are fired. The Castle inherently already has 4 "power" which is listed in the attack with parenthesis. Not all garrisoned units add the same number of arrows, their value is generally dependent on two factors: attack and Rate of Fire. The more damage output the garrisoned units have the higher the number of arrows fired.

For a Teuton player with Crenellations researched, fully garrisoning infantry of the same type enables the Castle to fire 12 arrows (7 extra).

The following table shows the maximum number of arrows a Castle can fire, when it is garrisoned with units of the same type:

Unit type Number of units required Number of arrows fired
Villager 20 14 (9 extra)
Archer 20 12 (7 extra)
Crossbowman 20 14 (9 extra)
Arbalester / Cavalry Archer 20 15 (10 extra)
Hand Cannoneer 20 21 (16 extra)

Trainable units and technologies[]

Clicking on the icon links to the corresponding page.

Blue: Units
Green: Technologies
Purple: Unique units
DarkageDE.png FeudalageDE.png CastleageDE.png Imperial Age
Unique unit Elite unique unit
Petard Trebuchetavailable.png
Unique technology 1 Unique technology 2

Further statistics[]

Building strengths and weaknesses
Strong vs. Ships, archers, Monks, frail melee units
Weak vs. Rams, Armored Elephants, Trebuchets, Bombard Cannons, Tarkans, Huskarls, War Elephants, Cannon Galleons
Hit points Masonry aoe2de.png Masonry (+10%)
ArchitectureDE.png Architecture (+10%)
HoardingsDE.png Hoardings (+21%)
Attack FletchingDE.png Fletching (+1)
BodkinArrowDE.png Bodkin Arrow (+1)
BracerDE.png Bracer (+1)
ChemistryDE.png Chemistry (+1)
HeatedShotDE.png Heated Shot (+4 attack against ships)
CastleAgeUnique.png Boiling Oil (+9 attack against rams, Persians only, before the Definitive Edition)
Range FletchingDE.png Fletching (+1)
BodkinArrowDE.png Bodkin Arrow (+1)
BracerDE.png Bracer (+1)
MurderHolesDE.png Murder Holes (eliminates minimum range)
Unique-tech-imperial.jpg Crenellations (+3, Teutons only)
Firing rate CastleAgeUnique.png Stronghold (+25%, Celts only)
Accuracy BallisticsDE.png Ballistics (hit moving targets)
Armor Masonry aoe2de.png Masonry (+1/+1, +3 building armor)
ArchitectureDE.png Architecture (+1/+1, +3 building armor)
Line of Sight TownWatchDE.png Town Watch (+4)
TownPatrolDE.png Town Patrol (+4)
Construction speed TreadmillCraneDE.png Treadmill Crane (+20%)
Work rate ConscriptionDE.png Conscription (+33%)
CastleAgeUnique.png Kasbah (+25%, Berbers only)
Other HerbalDE.png Herbal Medicine (garrisoned units heal faster)
Unique-tech-imperial.jpg Crenellations (enables garrisoned infantry to shoot arrows, Teutons only)
Unique-tech-imperial.jpg Cuman Mercenaries (grants to each ally the possibility to train 5 Elite Kipchaks for free per Castle, Cumans only)
CastleAgeUnique.png Detinets (changes 40% of the stone cost into wood, Slavs only)

Civilization bonuses[]

Team bonuses[]


The Age of Kings[]

  • Castles have 10 Line of Sight.
  • Castles take 150 seconds to build.

The Conquerors[]

The Forgotten[]

Definitive Edition[]

Dynasties of India[]


Each building style has a unique design for the Castle.

  • The Western European Castle resembles the front gate of Bodiam Castle in England.
  • The Central European Castle has a blocky design with four tall towers and two shorter ones with a bridge in between, bearing a distinct (but unexpected) resemblance to Rochester Castle in England.
  • The Eastern European Castle resembles the Malbork Castle in Poland.
  • The Mediterranean Castle in the HD Edition seems based on Torrechiara Castle in Parma, Italy. In the Definitive Edition, the new design looks like Fénis Castle.
  • The East Asian Castle is very similar to the main Keep of Japan's Osaka Castle.
  • The Native American Castle resembles the Mayan temples in Palenque, Mexico.
  • The Middle Eastern Castle resembles a simplified version of the Castel Nuovo in Naples, Italy, but with decorative elements from the gates and round towers at Saladin's Cairo Citadel. The merlons are Moorish style, like those in the Almoravid Qubba.
  • The Indian/Dravidians' Castle appears to be based on the Kumbhalgarh Fort in Rajasthan.
  • The African Castle resembles Almoravid adobe architecture like the Koubba and Aït Benhaddou in Morocco.
  • The Southeast Asian Castle resembles the Khmer temples in Angkor Wat, Cambodia.
  • The Central Asian Castle has some architecture similarities to the Herat Citadel in Afghanistan, particularly with the round towers and wall elements.
  • The Burgundian Castle is based on Flemish castles such as the Beersel Castle.
  • The Sicilian Castle is based on the Castello Ursino in Catania, Sicily.
  • The Bohemian Castle is based on the Karlštejn Castle.
  • The Polish Castle is based on the Będzin Castle.
  • The Gurjaras' Castle is based on the Gwalior Fort.


  • The Castle is the most expensive military building in the game.
  • The East Asian Castle costs the same stone as other Castles, even though it seems to be made more of wood than stone.
  • The Aztecs lack every HP and armor upgrade for their Castles (Hoardings, Masonry, and Architecture), arguably giving them the worst Castles out of all civilizations.
    • Fortunately for Aztecs, they do not rely as much on their unique unit as other civilizations.
  • The Teutons with Crenellations (+3 range and garrisoned infantry fire arrows) have the strongest Castles in-game.
  • The Huns have the most useless Castle, since both their unique technologies are very situational. Additionally, their Tarkans are also not very useful in most cases. They also lack every HP upgrade except Masonry, making their Castle extremely weak. As a result, the main usage for them is researching Conscription and making Trebuchets.
  • The Slavs with Detinets have the cheapest Castles in-game in terms of stone cost, needing 390 stones compared to the Franks which needs 488 stone.
  • The Native American Castle resembles a sacrificial temple from the Palenque archaeological site, even though Palenque itself contains a fortified palace (thus the name Palenque, an old Spanish word for fortress). Tall pyramid temples like this were occasionally used as improvised strongholds (the most notable example being the Great Pyramid of Tenochtitlan in the 1521 siege), but an entrance at the bottom of the stairs as depicted would defeat such purpose.
  • Due to an oversight, the Hindustanis Castle has the same snow and garrison flag locations as the Middle Eastern Castle, which the Indians had before Rise of the Rajas. This makes snow and flags look like they float on the air.
  • The achievement "Castle of Doubt" can be unlocked if the player loses an unfinished Castle that is at least 95% complete. This one is based on a popular meme highly known among the competitive scene as "Daut Castles", originating from a unsuccessful attempt to nearly complete construction of a castle made by Darko "Daut" Dautovic, a popular Age of Empires II player. It can be found on YouTube. Because of this, unfinished forward castles are widely called "Daut Castles".
  • In the alpha version, the Castles were longer and cost more stone and wood.
  • The Burgundians, Sicilians, Bohemians, Poles, Hindustanis, Dravidians, Bengalis, and Gurjaras have a unique Castle design despite sharing the architecture set with other civilizations. The Burgundians share the architecture set with Britons, Celts, and Franks; the Sicilians share the architecture set with Byzantines, Italians, Portuguese, and Spanish; and the Bohemians and the Poles share the same architecture set with the Slavs, Magyars, Bulgarians and Lithuanians. Hindustanis, Dravidians, Bengalis and Gurjaras share their architecture set only with each other, making South Asian architecture set the only one without a common Castle design between any two civilizations. This means Hindustanis, previously Indians, are the only pre-Definitive Edition civilization with a unique Castle, which was previously also the case because they didn't share their architecture set with any other civilization.


The first castles appeared in Europe in the ninth century as an improvement of the local lord’s stronghold. Castles were tactically defensive but strategically offensive. Because they were so difficult to capture if adequately defended, they provided a secure base from which a mobile force of warriors could extend political control. A local lord installed himself inside with a professional force of fighting men to serve him. Castles spread across Europe in the tenth and eleventh centuries in response to weak central authority and barbarian raids from the north and east. Kings spent the rest of the Middle Ages trying to take back control of castles raised by local lords. The development of dependable mobile heavy artillery in the fifteenth century finally made castles obsolete.
Age of Empires II manual




CASTLE vs EVERY UNIQUE UNIT - AoE II- Definitive Edition


CASTLE vs EVERY GENERIC UNIT - AoE II- Definitive Edition