Age of Empires IV Full Rus Technology Tree: 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 Rus 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.

• Barracks
  • Dark Age
    • Spearman
      • Hardened Spearman
        • Veteran Spearman (Castle Age)
          • Elite Spearman (Imperial Age)
  • Castle Age
    • Man-at-Arms
      • Elite Man-at-Arms (Imperial Age)
• Dock
  • Dark Age
    • Lodya Fishing Boat
    • Lodya Transport Ship
  • Feudal Age
    • Lodya Trade Ship
    • Lodya Attack Ship
    • Extended Lines
      • Drift Nets (Castle Age)
    • Additional Sails
  • Castle Age
    • Loday Demonlition Ship
    • Armored Hull
    • Navigator Lookout
    • Clinker Construction
  • Imperial Age
    • Cedar Hulls
    • Explosives
• Farm
• Fortified Palisade Gate
• Fortified Palisade Wall
• House
• Hunting Cabin
  • Dark Age
    • Scout
    • Survival Techniques
    • Wheelbarrow
  • Feudal Age
    • Professional Scouts
    • Horticulture
      • Fertilization (Castle Age)
        • Precision Cross-Breeding (Imperial Age)
• Kremlin (Landmark)
  • Castle Age
    • Springald Emplacement
• Lumber Camp
  • Dark Age
    • Forestry
  • Feudal Age
    • Double Broadax
      • Lumber Preservation (Castle Age)
        • Crosscut Saw (Imperial Age)
• Mining Camp
  • Feudal Age
    • Specialized Pick
      • Acid Distillation (Castle Age)
        • Cupellation (Imperial Age)
• The Golden Gate (Landmark)
• Town Center
  • Dark Age
    • Scout
    • Villager
  • Feudal Age
    • Textiles
• Wood Fortress
  • Dark Age
    • Castle Turret
    • Castle Watch
  • Feudal Age
    • Arrowslits
  • Castle Age
    • Springald Emplacement

Related: All Rus Civilization Masteries in Age of Empires IV

Feudal Age

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

• Abbey of the Trinity
  • Castle Age
    • Warrior Monk
    • Improved Blessing
    • Saint's Reach
    • Herbal Medicine
  • Imperial Age
    • Piety
    • Tithe Barns
• Archery Range
  • Feudal Age
    • Archer
      • Veteran Archer (Castle Age)
        • Elite Archer (Imperial Age)
  • Castle Age
    • Crossbowman
      • Elite Crossbowman (Imperial Age)
    • Horse Archer
      • Elite Horse Archer (Imperial Age)
  • Imperial Age
    • Streltsy
    • Mounted Precision
    • Double Time
• 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
• High Trade House
  • Survival Techniques
  • Wheelbarrow
  • Professional Scouts
  • Horticulture
    • Fertilization (Castle Age)
      • Precision Cross-Breeding (Imperial Age)
• Market
  • Feudal Age
    • Trader
• Siege Tower
• Stable
  • Feudal Age
    • Scout
    • Horseman
      • Veteran Horseman (Castle Age)
        • Elite Horseman (Imperial Age)
    • Early Knight
      • Knight (Castle Age)
        • Elite Knight (Imperial Age)
  • Castle Age
    • Boyar's Fortitude
  • Imperial Age
    • Knight Sabers

Castle Age

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

• High Armory (Landmark)
  • Castle Age
    • Wandering Town
    • Siege Crew
    • Fine Tuned Guns
    • Banded Arms
• Keep
  • Castle Age
    • Springald Emplacement
    • Boiling Oil
  • Imperial Age
    • Cannon Emplacement
• Monastery
  • Castle Age
    • Warrior Monk
    • Herbal Medicine
    • Blessing Duration
  • Imperial Age
    • Piety
    • Tithe Barns
• Siege Workshop
  • Castle Age
    • Springald
    • Mangonel
    • Counterweight Trebuchet
    • Greased Axles
  • Imperial Age
    • Bombard
    • Roller Shutter Triggers
    • Adjustable Crossbars
    • Siege Works
• Spasskaya Tower (Landmark)
  • Castle Age
    • Boiling Oil

Imperial Age

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

• Cathedral of the Tsar (Landmark)
• University
  • Imperial Age
    • Chemistry
    • Geometry
    • Biology
    • Incendiary Arrows
    • Court Architects
    • Elite Army Tactics

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

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