AoE IV Tech Tree
Civilizations
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Landmarks
Military
Support
Economic
I
Dark Age
Grand Winery
Imperial Hippodrome
Varangian Stronghold
Atgeirmaðr
Varangian Warcamp
Atgeirmaðr
Town Center
Scout
Villager
Lumber Camp
Forestry
Mining Camp
Dock
House
Outpost
II
Feudal Age
Cistern of the First Hill
Golden Horn Tower
Hardened Atgeirmaðr
Bogmaðr
Early Varangian Guard
Stronghold Defensive Arrowslits
Hardened Atgeirmaðr
Attack Ship
Bogmaðr
Early Varangian Guard
Archery Range
Bogmaðr
Stable
Horseman
Scout
Varangian Arsenal
Blade Inlaying (1/6)
Butted Chainmail (1/6)
Fortifications (1/6)
Iron Fittings (1/6)
Lamellar Armor (1/6)
Pattern Welding (1/6)
Ruinous Blinding
Scale Barding (1/6)
Sharpening Stones (1/6)
Siege Engineering
Textiles
Double Broadax
Specialized Pick
Market
Trader
Demolition Ship
Dromon
Fishing Boat
Galley
Trade Ship
Transport Ship
Extended Lines
Naval Arrowslits
Border Settlements
Arrowslits
Fortify Outpost
III
Castle Age
Foreign Engineering Company
Palatine School
Veteran Atgeirmaðr
Veteran Bogmaðr
Varangian Guard
Riddari
Veteran Atgeirmaðr
Veteran Bogmaðr
Varangian Guard
Riddari
Polutasvarf
Veteran Bogmaðr
Crossbowman
Veteran Horseman
Riddari
Siege Workshop
Cheirosiphon
Counterweight Trebuchet
Mangonel
Springald
Greased Axles
Keep
Boiling Oil
Mangonel Emplacement
Monastery
Monk
Herbal Medicine
Military Academy
Rhomphaia
Lumber Preservation
Shaft Mining
Drift Nets
Armored Hull
Extra Hammocks
Heavy Dromon
Liquid Explosives
IV
Imperial Age
Cathedral of Divine Wisdom
Elite Atgeirmaðr
Elite Bogmaðr
Elite Varangian Guard
Elite Riddari
Elite Atgeirmaðr
Elite Bogmaðr
Elite Varangian Guard
Elite Riddari
Elite Bogmaðr
Elite Crossbowman
Handcannoneer
Elite Horseman
Elite Riddari
Spyglass
Bombard
Adjustable Crossbars
Greek Fire Projectiles
Lightweight Beams
Prolonged Siege
Roller Shutter Triggers
Roman Fire
Cannon Emplacement
Piety
Tithe Barns
Crosscut Saw
Cupellation
Warship
Explosives
Heated Shot
Shipwrights