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Double Crossbow is a technology in Age of Empires II HD: Rise of the Rajas that is unique to the Khmer and can be researched at the Castle once the Imperial Age is reached. Once researched, it makes Ballista Elephants and Scorpions fire one more projectile.

To offset the power a little bit, however, the secondary projectile has a slight cone spread and does less damage than the primary one.

The secondary projectile of Scorpions and Ballista Elephants deals 6 pierce attack and 3 bonus attack against Elephants. The secondary projectile of Heavy Scorpions deals 12 pierce attack and 4 bonus attack against Elephants. The secondary projectile of Ballista Elephants benefits from Chemistry but the secondary projectile of Scorpions does not. Neither secondary projectile has a melee attack attached to it, unlike the primary projectile of the Scorpions.


Double Crossbow further bolsters the strength of Ballista Elephants and the Khmer's already impeccable Scorpions (+1 range due to their team bonus and access to Siege Engineers) against mass infantry.

Scorpions and Ballista Elephants with Double Crossbow are effective in large groups, as they can devastate large areas (comparatively, this puts the Khmer Scorpions at the same level as Ethiopian, Celtic, Chinese, and Roman Scorpions).

Team bonuses[]

  • Portuguese AoE2 Portuguese: Researching Double Crossbow is 25% faster.


Shen bi chuang zi lian cheng nu

A platformed multi-shot crossbow illustrated in the Ming dynasty military manual "Wu Bei Zhi"

Double crossbow is a set of crossbows with double bows, enabling the user to fire two arrows almost simultaneously. According to reliefs from 12th and early 13th centuries, Khmer people were known to employ double crossbows as their weapons. This practice was borrowed from China, who installed those weapons at the siege and defense of fortresses. The Khmer however, put these arms on the back of war elephants.[1]


  • For some reason, the technology name is referred to in the plural (as Double Crossbows) in the Definitive Edition tooltip for researching the technology. It is referred to by its proper name everywhere else, so this is probably an error or oversight.


  1. Schliesinger, Joachim. 2011. "Ethnic Groups of Cambodia Vol 1: Introduction and Overview" (p. 169). White Lotus, Bangkok.
Unique technologies in Age of Empires II
AoE2-DLCicon-0 The Age of Kings civilizations
UniqueTechCastle-DEBritons AoE2 Yeomen · Byzantines AoE2 Greek Fire · Celts AoE2 Stronghold · Chinese AoE2 Great Wall · Franks AoE2 Bearded Axe · Goths AoE2 Anarchy · Japanese AoE2 Yasama · Mongols AoE2 Nomads · Persians AoE2 Kamandaran · Saracens AoE2 Bimaristan · Teutons AoE2 Ironclad · Turks AoE2 Sipahi · Vikings AoE2 Chieftains
UniqueTechImperialDEBritons AoE2 Warwolf · Byzantines AoE2 Logistica · Celts AoE2 Furor Celtica · Chinese AoE2 Rocketry · Franks AoE2 Chivalry · Goths AoE2 Perfusion · Japanese AoE2 Kataparuto · Mongols AoE2 Drill · Persians AoE2 Citadels · Saracens AoE2 Counterweights · Teutons AoE2 Crenellations · Turks AoE2 Artillery · Vikings AoE2 Bogsveigar
AoE2-DLCicon-1 The Conquerors civilizations
UniqueTechCastle-DEAztecs AoE2 Atlatl · Huns AoE2 Marauders · Koreans AoE2 Eupseong · Mayans AoE2 Hul'che Javelineers · Spanish AoE2 Inquisition
UniqueTechImperialDEAztecs AoE2 Garland Wars · Huns AoE2 Atheism · Koreans AoE2 Shinkichon · Mayans AoE2 El Dorado · Spanish AoE2 Supremacy
AoE2-DLCicon-2 The Forgotten civilizations
UniqueTechCastle-DEIncas AoE2 Andean Sling · Italians AoE2 Pavise · Magyars AoE2 Corvinian Army · Slavs AoE2 Detinets
UniqueTechImperialDEIncas AoE2 Fabric Shields · Italians AoE2 Silk Road · Magyars AoE2 Recurve Bow · Slavs AoE2 Druzhina
AoE2-DLCicon-3 The African Kingdoms civilizations
UniqueTechCastle-DEBerbers AoE2 Kasbah · Ethiopians AoE2 Tigui · Malians AoE2 Royal Heirs · Portuguese AoE2 Carrack
UniqueTechImperialDEBerbers AoE2 Maghrebi Camels · Ethiopians AoE2 Farimba · Malians AoE2 Torsion Engines · Portuguese AoE2 Arquebus
AoE2-DLCicon-4 Rise of the Rajas civilizations
UniqueTechCastle-DEBurmese AoE2 Manipur Cavalry · Khmer AoE2 Tusk Swords · Malay AoE2 Thalassocracy · Vietnamese AoE2 Chatras
UniqueTechImperialDEBurmese AoE2 Howdah · Khmer AoE2 Double Crossbow · Malay AoE2 Forced Levy · Vietnamese AoE2 Paper Money
AoE2-DLCicon-5 The Last Khans civilizations
UniqueTechCastle-DEBulgarians AoE2 Stirrups · Cumans AoE2 Steppe Husbandry · Lithuanians AoE2 Hill Forts · Tatars AoE2 Silk Armor
UniqueTechImperialDEBulgarians AoE2 Bagains · Cumans AoE2 Cuman Mercenaries · Lithuanians AoE2 Tower Shields · Tatars AoE2 Timurid Siegecraft
AoE2Icon-LordsWest Lords of the West civilizations
UniqueTechCastle-DEBurgundians AoE2 Burgundian Vineyards · Sicilians AoE2 First Crusade
UniqueTechImperialDEBurgundians AoE2 Flemish Revolution · Sicilians AoE2 Hauberk
Dawn of the Dukes icon Dawn of the Dukes civilizations
UniqueTechCastle-DEBohemians AoE2 Wagenburg Tactics · Poles AoE2 Szlachta Privileges
UniqueTechImperialDEBohemians AoE2 Hussite Reforms · Poles AoE2 Lechitic Legacy
AoE2Icon-DynastiesIndia Dynasties of India civilizations
UniqueTechCastle-DEBengalis AoE2 Paiks · Dravidians AoE2 Medical Corps · Gurjaras AoE2 Kshatriyas · Hindustanis AoE2 Grand Trunk Road
UniqueTechImperialDEBengalis AoE2 Mahayana · Dravidians AoE2 Wootz Steel · Gurjaras AoE2 Frontier Guards · Hindustanis AoE2 Shatagni
AoE2Icon-ReturnRome Return of Rome civilizations
UniqueTechCastle-DERomans AoE2 Ballistas
UniqueTechImperialDERomans AoE2 Comitatenses
AoE2Icon-MountainRoyals The Mountain Royals civilizations
UniqueTechCastle-DEArmenians AoE2 Cilician Fleet · Georgians AoE2 Svan Towers
UniqueTechImperialDEArmenians AoE2 Fereters · Georgians AoE2 Aznauri Cavalry
Removed technologies
UniqueTechCastle-DEPersians AoE2 Boiling Oil · Saracens AoE2 Camelry · Saracens AoE2 Madrasah · Mayans AoE2 Obsidian Arrows · Slavs AoE2 Orthodoxy · Koreans AoE2 Panokseon
UniqueTechImperialDEVikings AoE2 Berserkergang · Persians AoE2 Mahouts · Sicilians AoE2 Scutage · Saracens AoE2 Zealotry
Revised technologies
UniqueTechImperialDE Couriers · UniqueTechImperialDE Manipur Cavalry · UniqueTechImperialDE Paper Money · UniqueTechCastle-DE Royal Heirs