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 Mongols 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)Feudal AgeEarly Man-at-ArmsMan-at-Arms (Castle Age)Elite Man-at-Arms (Imperial Age)Castle AgeLandsknechtElite Landsknecht (Imperial AgeHeavy MacesTwo-Handed WeaponsImperial AgeRiveted Chain MailDeer Stones (Landmark)DockDark AgeFishing BoatTransport ShipFeudal AgeTrade ShipLight JunkExtended LinesDrift Nets (Castle Age)Additional SailsPiracyCastle AgeWar JunkExplosive JunkNavigator LookoutExtra BallistaImperial AgeBaochuanChaser CannonsExplosivesGerDark AgeForestrySurvival TechniquesWheelbarrowFeudal AgeProfessional ScoutsHorticultureFertilization (Castle Age)Precision Cross-breeding (Imperial Age)Double BroadaxLumber Preservation (Castle Age)Crosscut Saw (Imperial Age)Specialized PickAcid Distillation (Castle Age)Cupellation (Imperial Age)OutpostFeudal AgeArrow SlitsFortify OutpostCastle AgeSpringald EmplacementImperial AgeCannon EmplacementOvooDark AgeSuperior MobilityFeudal AgeWhistling ArrowsRaid BountyCastle AgeAdditional TorchesImperial AgeStone BountyPastureDark AgeHerdable SheepStableDark AgeScoutEarly HorsemanHorseman (Feudal Age)Veteran Horseman (Castle Age)Elite Horseman (Imperial Age)Castle AgeLancerElite Lancer (Castle Age)The Silver Tree (Landmark)Feudal AgeTraderImperial AgeStone CommerceTown 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)

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

  • Elite Man-at-Arms (Imperial Age)

  • Elite Landsknecht (Imperial Age

  • Drift Nets (Castle Age)

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

  • Precision Cross-breeding (Imperial Age)

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

  • Crosscut Saw (Imperial Age)

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

  • Cupellation (Imperial Age)

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

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

  • Elite Horseman (Imperial Age)

  • Elite Lancer (Castle Age)

  • Feudal AgeTraderImperial AgeStone Commerce

  • ScoutVillager

  • Archery RangeFeudal AgeArcherVeteran Archer (Castle Age)Elite Archer (Imperial Age)MangudaiVeteran Mangudai (Castle Age)Elite Mangudai (Imperial Age)Castle AgeCrossbowmanElite Crossbowman (Imperial Age)Siha Bow LimbsImperial AgeHand CannoneerBattering 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 AcademyImperial AgeBiologyChemistryElite Army TacticsKurultai (Landmark)MarketFeudal AgeTraderImperial AgeStone CommerceSiege TowerSteppe Redoubt (Landmark)Dark AgeForestrySurvival TechniquesWheelbarrowFeudal AgeProfessional ScoutsHorticultureFertilization (Castle Age)Precision Cross-breeding (Imperial Age)Double BroadaxLumber Preservation (Castle Age)Crosscut Saw (Imperial Age)Specialized PickAcid Distillation (Castle Age)Cupellation (Imperial Age)

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)

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

  • Elite Mangudai (Imperial 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 AgeForestrySurvival TechniquesWheelbarrowFeudal AgeProfessional ScoutsHorticultureFertilization (Castle Age)Precision Cross-breeding (Imperial Age)Double BroadaxLumber Preservation (Castle Age)Crosscut Saw (Imperial Age)Specialized PickAcid Distillation (Castle Age)Cupellation (Imperial Age)

  • Khaganate PalaceCastle AgeLancerElite Lancer (Imperial Age)MangudaiVeteran MangudaiElite Mangudai (Imperial Age)Early HorsemanHorsemanVeteran Horseman (Imperial Age)Elite HorsemanPrayer TentCastle AgeShamanHerbal MedicineImperial AgePietyMonastic ShrinesTithe BarnsSiege WorkshopCastle AgeSpringaldMangonelCounterweight TrebuchetGreased AxlesImperial AgeBombardCulverinRoller Shutter TriggersAdjustable CrossbarsSiege WorksThe White Stupa (Landmark)

Imperial Age

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

  • Elite Lancer (Imperial Age)

  • Veteran MangudaiElite Mangudai (Imperial Age)

  • HorsemanVeteran Horseman (Imperial Age)Elite Horseman

  • Veteran Horseman (Imperial Age)Elite Horseman

  • Elite Horseman

  • Monument of the Great Khan (Landmark)

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

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