AoE IV Tech Tree
Civilizations
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Landmarks
Military
Support
Economic
I
Dark Age
Aachen Chapel
Meinwerk Palace
Barracks
Spearman
Town Center
Prelate
Scout
Villager
Lumber Camp
Forestry
Mill
Survival Techniques
Wheelbarrow
Mining Camp
Dock
Outpost
II
Feudal Age
Burgrave Palace
Regnitz Cathedral
Hardened Spearman
Early Man-at-Arms
Archery Range
Archer
Stable
Horseman
Blacksmith
Bloomery
Fitted Leatherwork
Iron Undermesh
Siege Engineering
Steeled Arrow
Textiles
Double Broadax
Horticulture
Professional Scouts
Specialized Pick
Market
Trader
Demolition Ship
Fishing Boat
Galley
Hulk
Trade Ship
Transport Ship
Extended Lines
Fire Stations
Naval Arrowslits
Arrowslits
Fortify Outpost
III
Castle Age
Elzbach Palace
Palace of Swabia
Veteran Spearman
Man-at-Arms
Landsknecht
Heavy Maces
Two-Handed Weapons
Veteran Archer
Crossbowman
Veteran Horseman
Knight
Siege Workshop
Counterweight Trebuchet
Mangonel
Springald
Greased Axles
Keep
Boiling Oil
Slate and Stone Construction
Springald Emplacement
Decarbonization
Insulated Helm
Wedge Rivets
Balanced Projectiles
Military Academy
Monastery
Cistercian Abbeys
Devoutness
Herbal Medicine
Inspired Warriors
Lumber Preservation
Fertilization
Shaft Mining
Drift Nets
Armored Hull
Extra Hammocks
Incendiaries
Springald Crews
IV
Imperial Age
Great Palace of Flensburg
Elite Spearman
Elite Man-at-Arms
Elite Landsknecht
Elite Archer
Elite Crossbowman
Black Rider
Handcannoneer
Elite Horseman
Elite Knight
Spyglass
Culverin
Adjustable Crossbars
Geometry
Lightweight Beams
Roller Shutter Triggers
Cannon Emplacement
Reinforced Defenses
Damascus Steel
Master Smiths
Angled Surfaces
Platecutter Point
University
Biology
Chemistry
Court Architects
Elite Army Tactics
Incendiary Arrows
Serpentine Powder
Siege Works
Silk Bowstrings
Piety
Tithe Barns
Crosscut Saw
Precision Cross-Breeding
Cupellation
Carrack
Explosives
Heated Shot
Shipwrights
Swivel Cannon