Production Cost 160
Unlocked at Chivalry
The Castle is a building available in the Medieval Era.

Game Info

Building a Castle requires Walls or any of its replacements.

  • +7 Strength City Strength
  • +25 City Health

With Social Policies / Tenets:

  • Fortified Borders (Autocracy): +1 Happy Happiness

With Neuschwanstein:

  • +3 Gold Gold
  • +2 CultureIcon Culture
  • +1 Happy Happiness


A castle is a building designed to protect a military force (and perhaps some civilians, too) from its enemies. Primarily constructed of stone (wood being unfortunately flammable), castles usually contain an outer wall and a separate fortified inner building, or "donjon." A castle should also contain an independent water source and storage for a lot of food.

A well-designed castle should provide its defenders with a way to kill the attackers during their approach, and while they're attempting to scale the walls or break through the gates. Arrow slits and crenellations (battlements with portions cut out at regular intervals) are required, while "murder holes" to shoot arrows or pour boiling oil on attackers' heads are a nice addition.

Castles were the largest and most expensive sign of a country's military and economic might until the advent of gunpowder artillery made them into elaborate and expensive deathtraps for those within.

Unique Building Replacements

Icon Building Civilization Yields
Alcazaba Córdoba (Abd-ar-Rahman III)
  • +1 Happy Happiness.
  • +10% Food Food.
Barbican Poland (Sigismund III)
  • +5 FaithIcon Faith if the City has never been captured.
  • Additional +7 Strength City Strength when attacking.
Belfort Flanders (Robrecht III)
  • Unlocked at Guilds.
  • Does not require Walls to construct.
  • -25% Production Production cost.
  • Three may be built per city
    • Each rewards CultureIcon Culture (3*city's gold output) upon completion.
    • 1st requires Market, 2nd requires Temple, 3rd requires University.
    • Prerequisite buildings yield +1 Gold Gold.
Caer Wales (Llywelyn)
  • Greater Defense.
  • 1 slot for a Greatwork Great Work of Art.
Ciudadela Chimor (Ñancempinco)
Convento Portugal (Afonso I)
  • +2 FaithIcon Faith.
  • Does not require Walls.
  • Units purchased with FaithIcon Faith in this city can Moves move immediately.
Dzimbabwe Zimbabwe (Nyatsimba Mutota)
  • +1 Strength Defense Strength for every International Trade Route from the City.
  • Provides CultureIcon Culture and Production Production for every 5 Strength Defense Strength of the City.
Dzong Bhutan (Jigme Dorji Wangchuck)
  • +1 Strength Defense per follower.
  • Unlocks at Theology.
  • Requires Shrine (instead of Walls).
Furtezza Corsica (Pasquale Paoli)
  • Slightly cheaper.
  • Does not require Walls to construct.
  • Grants military units the Great Generals I promotion.
Great Kancha The Chimu (Tacaynamo)
  • Unlocked at Civil Service
  • Has a Specialist slot, which randomly changes whenever a Great Person is born
Gusuku Ryukyu (Sho Hashi)
  • +1 Science Science.
  • 1 Scientist Specialist slot.
Hrad Bohemia (Vaclav II)
  • +1 Gold Gold from Cattle, Sheep, Stone, and Wheat.
  • +5% Gold Gold for each type of these resources worked.
Island Fortress Lithuania (Mindaugas)
Qila / Mughal Fort India (Gandhi)

The Mughals (Akbar)

  • +2 CultureIcon Culture.
  • +2 Tourism Tourism after Flight.
  • For the Mughals:
    • +1 Goldenage Golden Age point per 2 Wonders.
    • +1 Goldenage Golden Age point per 4 Buildings.
    • 1 slot for a Greatwork Great Work of Art.
    • -6% Production Production cost.
Svaneti Tower Georgia (Tamar)
  • -50% Production Production Cost.
  • +1 FaithIcon Faith.
  • 15% of Food Food is carried over after a new Citizen is born.
Tower House Albania (Skanderbeg)
  • +2 Production Production.
  • +15% Production Production towards Land Units.
Vegvar Hungary (Stephen I)
  • If captured by an enemy, the city will take 30 damage per turn until peace is made.
  • +16% Production Production cost.
  • If following your main Religion Religion:
    • +25% Religious pressure.
    • +1 FaithIcon Faith per defensive building.
Végvar Hungary (Stephen I) (LastSword)
  • -5% Production Production Cost per each Civ bordering the City's territory.
  • Can act as a 'Rally Point', causing units trained in other Cities to appear there.
Zimbabwe Zimbabwe (Nyatsimba Mutota)
  • +1 Gold Gold on Sheep and Cattle.
  • Increases Food Food generation from Trade-Routes links (max +20%).

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