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 French 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, the parent list item is a prerequisite to the child list item.

Dark Age

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

  • BarracksDark AgeSpearmanHardened SpearmanVeteran Spearman (Castle Age)Elite Spearman (Imperial Age)Castle AgeMan-at-ArmsElite Man-at-Arms (Imperial Age)Chamber of Commerce (Landmark)Dark AgeTraderDockDark AgeFishing BoatTransport ShipFeudal AgeTrade ShipHulkExtended LinesDrift Nets (Castle Age)Additional SailsCastle AgeDemolition ShipGalleassLong GunsExtra 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 WallSchool of Cavalry (Landmark)Feudal AgeScoutHorsemanVeteran Horseman (Castle Age)Elite Horseman (Imperial Age)Royal KnightVeteran Royal Night (Castle Age)Elite Royal Night (Imperial Age)ChivalryCastle AgeCantled SaddlesTown CenterDark AgeScoutVillagerFeudal AgeTextiles

Feudal Age

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

  • Hardened SpearmanVeteran Spearman (Castle Age)Elite Spearman (Imperial Age)

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

  • Elite Spearman (Imperial Age)

  • Elite Man-at-Arms (Imperial Age)

  • Dark AgeTrader

  • 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)

  • Feudal AgeScoutHorsemanVeteran Horseman (Castle Age)Elite Horseman (Imperial Age)Royal KnightVeteran Royal Night (Castle Age)Elite Royal Night (Imperial Age)ChivalryCastle AgeCantled Saddles

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

  • Elite Horseman (Imperial Age)

  • Veteran Royal Night (Castle Age)Elite Royal Night (Imperial Age)

  • Elite Royal Night (Imperial Age)

  • ScoutVillager

  • Archery RangeFeudal AgeArcherVeteran Archer (Castle Age)Elite Archer (Imperial Age)Castle AgeGambesonsArbalétrierElite Arbalétrier (Imperial Age)Imperial AgeHand CannoneerCrossbow StirrupsBattering 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 AcademyGuild Hall (Landmark)MarketFeudal AgeTraderRoyal InstituteCastle AgeEnlistment IncentivesRoyal BloodlinesCantled SaddlesChivalryGambesonsCrossbow StirrupsSiege TowerStableFeudal AgeScoutHorsemanVeteran Horseman (Castle Age)Elite Horseman (Imperial Age)Royal KnightVeteran Royal Knight (Castle Age)Elite Royal Knight (Castle Age)ChivalryCastle AgeCantled SaddlesStone WallStone Wall GateStone Wall Tower

Castle Age

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

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

  • Elite Archer (Imperial Age)

  • Elite Arbalétrier (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

  • Veteran Royal Knight (Castle Age)Elite Royal Knight (Castle Age)

  • Elite Royal Knight (Castle Age)

  • College of Artillery (Landmark) Castle AgeRoyal CannonRoyal RibauldequinRoyal CulverinKeep Castle AgeSpringald EmplacementBoiling OilImperial AgeCannon EmplacementEnlistment IncentivesMonasteryCastle AgeMonkHerbal MedicineImperial AgePietyTithe BarnsSiege WorkshopCastle AgeSpringaldMangonelCounterweight TrebuchetGreased AxlesImperial AgeBombardRibauldequinRoller Shutter TriggersAdjustable CrossbarsSiege WorksRed Palace (Landmark)Castle AgeSpringald EmplacementBoiling OilImperial AgeCannon EmplacementEnlistment Incentives

Imperial Age

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

  • Castle AgeRoyal CannonRoyal RibauldequinRoyal Culverin

  • Castle AgeSpringald EmplacementBoiling Oil

  • Imperial AgeCannon EmplacementEnlistment Incentives

  • Notre Dame(Landmark)UniversityImperial AgeChemistryGeometryRoyal BloodlinesIncendiary ArrowsCourt ArchitectsElite Army Tactics

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

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