Castle Age is a Town Center age advancement. Needs two Feudal Age buildings (Archery Range, Stable, Blacksmith or Market). Unlocks the Castle Age buildings, units and technologies.
- Building: Town Center
- Age: researched in the Feudal Age
- Cost: 800 food, 200 gold
- Research time: 160 seconds
- Available to: every civilization
Unlocks Castles, Monks, siege, Knights, Crossbowmen and extra Town Centers. Players reach it either fast (a Fast Castle) or after a Feudal Age army has done its job.
Figures from the game data for Update 185872 (September 2026), at the time of publishing.