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The Citadel is a building and tile improvement in the Civilization games.

Civilization IV

Civilization V

Other games

Citadel is not present in (or the article has not been created for) the following games :

Game Article
Civilization VII Citadel (Civ7)
Civilization: Beyond Earth Citadel (CivBE)
Civilization Revolution Citadel (CivRev)
Civilization Revolution 2 Citadel (CivRev2)
CivWorld Citadel (CivWorld)
Freeciv Citadel (Freeciv)
Civilization: Call to Power Citadel (CTP1)
Call to Power II Citadel (CTP2)
C-evo Citadel (C-evo)
Sid Meier's Colonization Citadel (Col)
FreeCol Citadel (FreeCol)
Civilization IV: Colonization Citadel (Civ4Col)
Sid Meier's Alpha Centauri‎ Citadel (SMAC)
Starships Citadel (Starships)

Not in the following games

It has been confirmed that Citadel is not present in the following games :

Civilization II
Civilization III
Civilization VI

Future technology (CivRev)
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