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)BarracksDark AgeVanguard Man-at-ArmsEarly Man-at-Arms (Feudal Age)Man-at-Arms (Castle Age)Elite Man-at-Arms (Imperial Age)Feudal AgeHardened SpearmanVeteran Spearman (Castle Age)Elite Spearman (Imperial Age)Castle AgeArmor CladCouncil Hall (Landmark)Feudal AgeLongbowmanVeteran Longbowman (Castle Age)Elite Longbowman (Imperial Age)Setup CampImperial AgeArrow VolleyDockDark AgeImperial BoatTransport ShipExtended LinesDrift Nets (Castle Age)ShipwrightsAdditional SailsFeudal AgeTrade ShipGalleyCastle AgeDemolition ShipHulkArmored HullExtra BallistaNavigator LookoutImperial AgeCarrackChaser CannonsExplosivesFarmHouseLumber CampDark AgeForestryFeudal AgeDouble BroadaxLumber Preservation (Castle Age)Crosscut Saw (Imperial Age)MillDark AgeSurvival TechniquesWheelbarrowFeudal AgeProfessional ScoutsHorticultureFertilization (Castle Age)Precision Cross-Breeding (Imperial Age)Imperial AgeEnclosuresMining CampFeudal AgeSpecialized PickAcid Distillation (Castle Age)Cupellation (Imperial Age)OutpostFeudal AgeArrowslitsFortify OutpostCastle AgeSpringald EmplacementImperial AgeCannon EmplacementPalisade GatePalisade WallTown CenterDark AgeScoutVillagerFeudal AgeTextiles

Feudal Age

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

  • Early Man-at-Arms (Feudal Age)Man-at-Arms (Castle Age)Elite Man-at-Arms (Imperial Age)

  • Man-at-Arms (Castle Age)Elite Man-at-Arms (Imperial Age)

  • Elite Man-at-Arms (Imperial Age)

  • Veteran Spearman (Castle Age)Elite Spearman (Imperial Age)

  • Elite Spearman (Imperial Age)

  • Feudal AgeLongbowmanVeteran Longbowman (Castle Age)Elite Longbowman (Imperial Age)Setup Camp

  • Imperial AgeArrow Volley

  • Veteran Longbowman (Castle Age)Elite Longbowman (Imperial Age)

  • Elite Longbowman (Imperial Age)

  • Drift Nets (Castle Age)

  • Lumber Preservation (Castle Age)Crosscut Saw (Imperial Age)

  • Crosscut Saw (Imperial Age)

  • Professional ScoutsHorticultureFertilization (Castle Age)Precision Cross-Breeding (Imperial Age)

  • Fertilization (Castle Age)Precision Cross-Breeding (Imperial Age)

  • Precision Cross-Breeding (Imperial Age)

  • Acid Distillation (Castle Age)Cupellation (Imperial Age)

  • Cupellation (Imperial Age)

  • ScoutVillager

  • Archery RangeFeudal AgeLongbowmanVeteran Longbowman (Castle Age)Elite Longbowman (Imperial Age)Setup CampCastle AgeCrossbowmanElite Crossbowman (Imperial Age)Imperial AgeHand CannoneerArrow VolleyBattering RamBlacksmithFeudal AgeBloomeryDecarbonization (Castle Age)Damascus Steel (Imperial Age)Steeled ArrowBalanced Projectiles (Castle Age)Platecutter Point (Imperial Age)Fitted LeatherworkInsulated Helm (Castle Age)Mastered Smiths (Imperial Age)Iron UndermeshWedge Rivets (Castle Age)Angled Surfaces (Imperial Age)Siege EngineeringCastle AgeMilitary AcademyKing’s Palace (Landmark)Dark AgeVillagerScoutFeudal AgeTextilesMarketFeudal AgeTraderSiege TowerStableFeudal AgeScoutHorsemanVeteran Horseman (Castle Age)Elite Horseman (Imperial Age)Castle AgeKnightElite Knight (Imperial Age)Stone WallStone Wall GateStone Wall TowerThe White Tower Castle AgeSpringald EmplacementBoiling OilNetwork of CitadelsImperial AgeCannon Emplacement

Castle Age

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

  • Elite Crossbowman (Imperial Age)

  • Decarbonization (Castle Age)Damascus Steel (Imperial Age)

  • Damascus Steel (Imperial Age)

  • Balanced Projectiles (Castle Age)Platecutter Point (Imperial Age)

  • Platecutter Point (Imperial Age)

  • Insulated Helm (Castle Age)Mastered Smiths (Imperial Age)

  • Mastered Smiths (Imperial Age)

  • Wedge Rivets (Castle Age)Angled Surfaces (Imperial Age)

  • Angled Surfaces (Imperial Age)

  • Military Academy

  • Dark AgeVillagerScoutFeudal AgeTextiles

  • Veteran Horseman (Castle Age)Elite Horseman (Imperial Age)

  • Elite Horseman (Imperial Age)

  • Elite Knight (Imperial Age)

  • Berkshire Palace (Landmark) Castle AgeSpringald EmplacementBoiling OilNetwork of CitadelsImperial AgeCannon EmplacementKeep Castle AgeSpringald EmplacementBoiling OilNetwork of CitadelsImperial AgeCannon EmplacementMonasteryCastle AgeMonkHerbal MedicineImperial AgePietyTithe BarnsSiege WorkshopCastle AgeSpringaldMangonelCounterweight TrebuchetGreased AxlesImperial AgeBombardRibauldequinRoller Shutter TriggersAdjustable CrossbarsSiege WorksShattering ProjectilesWynguard Palace (Landmark)Imperial AgeWynguard Army

Imperial Age

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

  • Castle AgeSpringald EmplacementBoiling OilNetwork of CitadelsImperial AgeCannon Emplacement

  • Imperial AgeWynguard Army

  • Cathedral of St. Thomas (Landmark)UniversityImperial AgeChemistryGeometryBiologyIncendiary ArrowsCourt ArchitectsElite Army Tactics

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

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