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This article is about the technology in Age of Empires II. For other uses, see Heated Shot.

Heated Shot is a technology in Age of Empires II that can be researched at the University. Once researched, it gives towers an attack bonus of +125%, and Castles, Harbors, and Kreposts +4 attack against ships, i.e. both the ship and fishing ship armor classes. Notably, it does not affect the Town Center. Heated Shot affects all projectiles of the respective buildings by the same amount as that of the primary projectile.

Due to the rules of multiplication of attacks which rounds off the values, the actual increase for towers may not be +125%.

Availability chart[]

Heatedshotavailable AvailableHeatedshotunavailable Unavailable

Attack increase against ships[]

Because Heated Shot is an attack multiplier for towers, but not for Castles and Harbors, the actual increase in attack bonus against ships differs for the affected buildings.

Building Heatedshotunavailable Without Heatedshotavailable With Additive increase Percentage increase
Aoe2-icon-donjon Donjon
Watch Tower icon AoE2DE Watch Tower
7 16 9 128.57
Guard Tower icon AoE2DE Guard Tower 9 20 11 122.22
Keep icon AoE2DE Keep 10 23 13 130
Bombard tower aoe2DE Bombard Tower 40 90 50 125
Castle aoe2DE Castle
Krepost icon updated Krepost
0 4 4 inf
Harbor aoe2de Harbor 10 14 4 40

Before the launch of The African Kingdoms, it was highly dangerous to enter a building's firing range not only for ships, but also for Camel Riders and Mamelukes, as camel units were also in the ship armor class.

Buildings exclusive to the Scenario Editor also benefit from this technology, with the Poenari Castle and the Fortress being treated like Castles and Kreposts (i.e. receiving an additional +4 attack bonus) and The Accursed Tower, The Tower of Flies as well as Fortified Towers, Sea Towers and Fire Towers being treated like towers (i.e. receiving an additional +125% attack bonus). For the latter, the effect seems to be slightly stronger (around 260% instead of 225%) due to rounding errors.

Civilizations bonuses[]

  • Chinese AoE2 Chinese: Heated Shot is 10%/15% cheaper in the Castle/Imperial Age.
  • Italians AoE2 Italians: Heated Shot is 33% cheaper.

Team bonuses[]

  • Malians AoE2 Malians: Researching Heated Shot is 80% faster.
  • Portuguese AoE2 Portuguese: Researching Heated Shot is 25% faster.


AoE2-DLCicon-0 The Age of Kings[]

  • Tower damage increase is +50%

AoE2-DLCicon-1 The Conquerors[]

AoEIIDE icon Definitive Edition[]

AoE2Icon-LordsWest Lords of the West[]


  • Neither of the two civilizations introduced in Dawn of the Dukes have access to Heated Shot.
  • With the 256x tech mod or the Going Above and Beyond cheat code, this upgrade can be used to do damage to non-ships as well. All units technically take all kinds of bonus damage, but they have 10,000 armor against all bonus damage they're not supposed to take (i.e. armor classes they don't have). Being multiplicative, Heated Shot researched repeatedly can allow your anti-ship attack to exceed the 10,000 ship armor of non-ships. 10 upgrades should let any tower one-shot anything that doesn't have a repeated multiplicative HP upgrade.


Coastal gunners who engaged ships learned to heat their cannonballs in furnaces until they were red hot. If a heated shot lodged in the woodwork of a sailing ship, it could set the ship afire. The wadding in the barrel of the gun had to be sufficiently thick to not burn away before the cannon could be fired. If the shot burned through the wadding too quickly, the gun could go off before being properly aimed. In such a case the gun might explode rather than fire. Heated shot that plunged through decks was especially dangerous. It could lodge deep in the ship where the crew could not reach it with water before fire had taken hold. If fire reached the powder magazine, the ship would explode.
Age of Empires II manual
Technologies in Age of Empires II
Economic technologies
MaleVillDEFEMALEVILLDE VillagerWheelbarrowDE Wheelbarrow · HandcartDE Hand Cart
Aoe2de food FoodHorseCollarDE Horse Collar · HeavyPlowDE Heavy Plow · CropRotationDE Crop Rotation
GillnetsDE Gillnets
Aoe2de wood WoodDoubleBitAxe aoe2DE Double-Bit Axe · BowSawDE Bow Saw · TwoManSawDE Two-Man Saw
Aoe2de gold GoldGoldMiningDE Gold Mining · GoldShaftMiningDE Gold Shaft Mining
CaravanDE Caravan
Aoe2de stone StoneStoneMiningDE Stone Mining · StoneShaftMiningDE Stone Shaft Mining
Civilian shipsDryDockDE Dry Dock · ShipwrightDE Shipwright
Market aoe2DE MarketCoinageDE Coinage · BankingDE Banking
GuildsDE Guilds
Military technologies
GeneralConscriptionDE Conscription
HeresyDE Heresy · Devotion icon AoE2DE Devotion · FaithDE Faith
Melee unitsForging aoe2de Forging · IronCastingDE Iron Casting · BlastFurnaceDE Blast Furnace
CavalryBloodlinesDE Bloodlines · HusbandryDE Husbandry
ScaleBardingArmorDE Scale Barding Armor · ChainBardingDE Chain Barding Armor · PlateBardingArmorDE Plate Barding Armor
InfantrySuplliesicon Supplies · AoE2 Gambesons Gambesons · SquiresDE Squires · ArsonDE Arson
ScaleMailArmorDE Scale Mail Armor · ChainMailArmorDE Chain Mail Armor · PlateMailArmorDE Plate Mail Armor
Ranged unitsBallisticsDE Ballistics · ChemistryDE Chemistry
FletchingDE Fletching · BodkinArrowDE Bodkin Arrow · BracerDE Bracer
ArchersPaddedArcherArmorDE Padded Archer Armor · LeatherArcherArmorDE Leather Archer Armor · RingArcherArmorDE Ring Archer Armor
ThumbRingDE Thumb Ring · ParthianTacticsDE Parthian Tactics
SiegeSiegeEngineersDE Siege Engineers
ShipCareeningDE Careening · DryDockDE Dry Dock
ShipwrightDE Shipwright
WarGalleyDE War Galley
BuildingTownWatchDE Town Watch · TownPatrolDE Town Patrol
Masonry aoe2de Masonry · ArchitectureDE Architecture
HeatedShotDE Heated Shot · ArrowSlitsDE Arrowslits · MurderHolesDE Murder Holes · TreadmillCraneDE Treadmill Crane · HoardingsDE Hoardings · BombardTower aoe2DE Bombard Tower
HerbalDE Herbal Medicine
MonkRedemptionDE Redemption · AtonementDE Atonement · SanctityDE Sanctity · FervorDE Fervor · IlluminationDE Illumination · BlockPrintingDE Block Printing · TheocracyDE Theocracy
MaleVillDEFEMALEVILLDE VillagerLoomDE Loom · SapperDE Sappers
Miscellaneous technologies
SpiesDE Spies · SpiesDE Treason · UniqueTechCastle-DEUniqueTechImperialDE Unique technologies
Removed/cut generic technologies
Bombardcannonresearch Bombard Cannon · CannongalleonresearchDE Cannon Galleon · Cartography aoe2de Cartography · Handcannon Hand Cannon · Huntingdogs Hunting Dogs · Revetments · TrackingDE Tracking