Imperial Age is a Town Center age advancement. Needs a Castle (or Krepost) or two Castle Age buildings (University, Siege Workshop or Monastery). Unlocks the Imperial Age units, upgrades and technologies.
- Building: Town Center
- Age: researched in the Castle Age
- Cost: 1,000 food, 800 gold
- Research time: 190 seconds
- Available to: every civilization
Unlocks the final unit upgrades, Trebuchets, gunpowder (with Chemistry) and the last economy techs. In most 1v1 games on Arabia, reaching it with a strong economy decides the late game.
Figures from the game data for Update 185872 (September 2026), at the time of publishing.