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 Delhi Sultanate 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)DockDark AgeFishing BoatTransport ShipFeudal AgeTrade ShipDhowExtended LinesDrift Nets (Castle Age)Patchwork RepairsCastle AgeBaghlahExplosive DhowNavigator LookoutArmored HullImperial AgeChaser CannonsExplosivesDome of the Faith (Landmark)Dark AgeScholarFarmHouseLumber CampDark AgeForestryFeudal AgeDouble BroadaxLumber Preservation (Castle Age)Crosscut Saw (Imperial Age)MillDark AgeSurvival TechniquesWheelbarrowFeudal AgeProfessional ScoutsHorticultureFertilization (Castle Age)Precision Cross-Breeding (Imperial Age)Mining CampFeudal AgeSpecialized PickAcid Distillation (Castle Age)Cupellation (Imperial Age)MosqueDark AgeScholarHerbal MedicinePietySanctityEfficient ProductionFeudal AgeAll-Seeing EyeSwiftnessZealTithe BarnsOutpostFeudal AgeArrowslitsFortify OutpostCastle AgeSpringald EmplacementImperial AgeCannon EmplacementPalisade GatePalisade WallTower of Victory (Landmark)Town 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)

  • Drift Nets (Castle Age)

  • Dark AgeScholar

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

  • Crosscut Saw (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 AgeArcherVeteran Archer (Castle Age)Elite Archer (Imperial Age)Castle AgeCrossbowmanElite Crossbowman (Imperial Age)Tower War ElephantImperial AgeHandcannoneerSiege ElephantBattering 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 AcademyForced MarchCompound of the Defender (Landmark)House of Learning (Landmark)Castle AgeReinforced FoundationsTranquil VenueLookout TowersImperial AgeHearty RationsHoned Blades MarketFeudal AgeTraderSiege TowerStableFeudal AgeScoutHorsemanVeteran Horseman (Castle Age)Elite Horseman (Imperial Age)Castle AgeLancerElite Lancer (Imperial Age)War ElephantImperial AgeArmored BeastsStone 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 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 AcademyForced March

  • Castle AgeReinforced FoundationsTranquil VenueLookout TowersImperial AgeHearty RationsHoned Blades

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

  • Elite Horseman (Imperial Age)

  • Elite Lancer (Imperial Age)

  • Hisar Academy (Landmark)Keep Castle AgeSpringald EmplacementBoiling OilSlow-Burning DefensesVillage FortressesImperial AgeCannon EmplacementPalace of the SultanImperial AgeTower War ElephantSiege WorkshopUnitsCastle AgeSpringaldMangonelCounterweight TrebuchetGreased AxlesImperial AgeBombardRoller Shutter TriggersAdjustable CrossbarsSiege Works

Imperial Age

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

  • Great Palace of Agra (Landmark)MadrasaImperial AgeChemistryGeometryBiologyIncendiary ArrowsCourt ArchitectsElite Army Tactics

That’s the entire tech tree for the Delhi Sultanate Civilization!

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