Full English Technology Tree in Age of Empires IV | Units, Buildings, and Upgrades

Age of Empires IV is a real-time strategy game that requires you to memorize tech trees to play effectively and get units out as soon as possible when you need them. However, each civilization has unique features and units, so remembering the prerequisites for each one can be difficult.

Full English Tech Tree

The tech tree below is sorted in ascending order by Civilization Age, then alphabetically by Building and the units/upgrades they provide at that Age. If a unit/upgrade is nested in another unit/upgrade, it means that the parent list item is a prerequisite to the child list item.

Dark Age

The following buildings and units became available in the Dark Age.

• Abbey of Kings (Landmark)
• Barracks
  • Dark Age
    • Vanguard Man-at-Arms
      • Early Man-at-Arms (Feudal Age)
        • Man-at-Arms (Castle Age)
          • Elite Man-at-Arms (Imperial Age)
  • Feudal Age
    • Hardened Spearman
      • Veteran Spearman (Castle Age)
        • Elite Spearman (Imperial Age)
  • Castle Age
    • Armor Clad
• Council Hall (Landmark)
  • Feudal Age
    • Longbowman
      • Veteran Longbowman (Castle Age)
        • Elite Longbowman (Imperial Age)
    • Setup Camp
  • Imperial Age
    • Arrow Volley
• Dock
  • Dark Age
    • Imperial Boat
    • Transport Ship
    • Extended Lines
      • Drift Nets (Castle Age)
    • Shipwrights
    • Additional Sails
  • Feudal Age
    • Trade Ship
    • Galley
  • Castle Age
    • Demolition Ship
    • Hulk
    • Armored Hull
    • Extra Ballista
    • Navigator Lookout
  • Imperial Age
    • Carrack
    • Chaser Cannons
    • Explosives
• Farm
• House
• Lumber Camp
  • Dark Age
    • Forestry
  • Feudal Age
    • Double Broadax
      • Lumber Preservation (Castle Age)
        • Crosscut Saw (Imperial Age)
• Mill
  • Dark Age
    • Survival Techniques
    • Wheelbarrow
  • Feudal Age
    • Professional Scouts
    • Horticulture
      • Fertilization (Castle Age)
        • Precision Cross-Breeding (Imperial Age)
  • Imperial Age
    • Enclosures
• Mining Camp
  • Feudal Age
    • Specialized Pick
      • Acid Distillation (Castle Age)
        • Cupellation (Imperial Age)
• Outpost
  • Feudal Age
    • Arrowslits
    • Fortify Outpost
  • Castle Age
    • Springald Emplacement
  • Imperial Age
    • Cannon Emplacement
• Palisade Gate
• Palisade Wall
• Town Center
  • Dark Age
    • Scout
    • Villager
  • Feudal Age
    • Textiles

Related: All English Civilization Masteries in Age of Empires IV

Feudal Age

The following buildings and units become available in the Feudal Age.

• Archery Range
  • Feudal Age
    • Longbowman
      • Veteran Longbowman (Castle Age)
        • Elite Longbowman (Imperial Age)
    • Setup Camp
  • Castle Age
    • Crossbowman
      • Elite Crossbowman (Imperial Age)
  • Imperial Age
    • Hand Cannoneer
    • Arrow Volley
• Battering Ram
• Blacksmith
  • Feudal Age
    • Bloomery
      • Decarbonization (Castle Age)
        • Damascus Steel (Imperial Age)
    • Steeled Arrow
      • Balanced Projectiles (Castle Age)
        • Platecutter Point (Imperial Age)
    • Fitted Leatherwork
      • Insulated Helm (Castle Age)
        • Mastered Smiths (Imperial Age)
    • Iron Undermesh
      • Wedge Rivets (Castle Age)
        • Angled Surfaces (Imperial Age)
    • Siege Engineering
  • Castle Age
    • Military Academy
• King's Palace (Landmark)
  • Dark Age
    • Villager
    • Scout
  • Feudal Age
    • Textiles
• Market
  • Feudal Age
    • Trader
• Siege Tower
• Stable
  • Feudal Age
    • Scout
    • Horseman
      • Veteran Horseman (Castle Age)
        • Elite Horseman (Imperial Age)
  • Castle Age
    • Knight
      • Elite Knight (Imperial Age)
• Stone Wall
• Stone Wall Gate
• Stone Wall Tower
• The White Tower
  • Castle Age
    • Springald Emplacement
    • Boiling Oil
    • Network of Citadels
  • Imperial Age
    • Cannon Emplacement

Castle Age

The following buildings and units become available in the Castle Age.

• Berkshire Palace (Landmark)
  • Castle Age
    • Springald Emplacement
    • Boiling Oil
    • Network of Citadels
  • Imperial Age
    • Cannon Emplacement
• Keep
  • Castle Age
    • Springald Emplacement
    • Boiling Oil
    • Network of Citadels
  • Imperial Age
    • Cannon Emplacement
• Monastery
  • Castle Age
    • Monk
    • Herbal Medicine
  • Imperial Age
    • Piety
    • Tithe Barns
• Siege Workshop
  • Castle Age
    • Springald
    • Mangonel
    • Counterweight Trebuchet
    • Greased Axles
  • Imperial Age
    • Bombard
    • Ribauldequin
    • Roller Shutter Triggers
    • Adjustable Crossbars
  • Siege Works
  • Shattering Projectiles
• Wynguard Palace (Landmark)
  • Imperial Age
    • Wynguard Army

Imperial Age

The following buildings and units become available in the Imperial Age.

• Cathedral of St. Thomas (Landmark)
• University
  • Imperial Age
    • Chemistry
    • Geometry
    • Biology
    • Incendiary Arrows
    • Court Architects
    • Elite Army Tactics

That's the entire tech tree for the English Civilization!

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