|Introduced in||The Conquerors|
|Research Time||50 seconds|
|Effect||Siege Workshop units +40% HP|
Furor Celtica is a technology in Age of Empires II: The Conquerors that is unique to the Celts and can be researched at the Castle once the Imperial Age is reached. Once researched, it increases the hit points of Siege Workshop units by +40%.
With Furor Celtica, Celtic siege units are more hardy in combat, giving more time for support units to eliminate their attackers. Combined with their civilization bonus (faster firing rate) and team bonus (faster creation speed), it makes Celtic siege weapons one of the most fearsome in the game.
- Furor Celtica adds +50% HP to Siege Workshop units.
- HP boost reduced from +50% to +40%.
"The warriors of Celtic Britain gained a reputation as very emotional fighters, capable of wide swings in their morale. Furor Celtica, or Celtic Fury, was a state of highly charged aggressiveness that all enemy armies sought to escape. If the fury could be withstood, it might vanish suddenly and turn into panic. If the Celtic leaders could manage and direct the fury of their soldiers, it was a daunting force multiplier."—Age of Empires II manual description
|Age of Empires II Unique Technologies|
|Garland Wars | Yeomen | Logistica | Furor Celtica | Rocketry | Bearded Axe | Anarchy | Perfusion | Atheism | Kataparuto | Shinkichon | El Dorado | Drill | Mahouts | Zealotry | Supremacy | Crenellations | Artillery | Berserkergang|
|Atlatl | Warwolf | Greek Fire | Stronghold | Great Wall | Chivalry | Marauders | Andean Sling | Couriers | Sultans | Shatagni | Pavise | Silk Road | Yasama | Panokseon | Mercenaries | Recurve Bow | Obsidian Arrows | Nomads | Boiling Oil | Madrasah | Orthodoxy | Druzhina | Inquisition | Ironclad | Sipahi | Chieftains|
|The African Kingdoms|
|Kasbah | Maghrabi Camels | Tigui | Farimba | Royal Heirs | Torsion Engines | Carrack | Arquebus|
|Rise of the Rajas|
|Howdah | Manipur Cavalry | Tusk Swords | Double Crossbow | Thalassocracy | Forced Levy | Chatras | Paper Money|