AoE4 Analyzer

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© 2026 AoE4 Analyzer. All rights reserved. · v1.0.4

Civilization GuideTechnologies

Lettre de Change

Adjustable Crossbars

Angled Surfaces

Armored Caravans

Merchant Guilds

Cannon Emplacement

Springald Emplacement

Mangonel Emplacement

Balanced Projectiles

Platecutter Point

Decarbonization

Medical Centers

Slow-Burning Defenses

Network of Citadels

Infantry Support

Sultan's Mamluks

Camel Rider Barding

Camel Rider Shields

Serpentine Powder

Heaven Shaking Thunder

Silk Bowstrings

Poisoned Arrows

Court Architects

Border Settlements

Slate and Stone Construction

Lumber Preservation

Double Broadax (Improved)

Specialized Pick

Specialized Pick (Improved)

Elite Army Tactics

Butted Chainmail (6/6)

Butted Chainmail (2/6)

Fertile Crescent

Improved Processing

Lettre de Change

Precision Cross-Breeding

Fitted Leatherwork

Forestry (Improved)

Fortify Outpost

Fresh Foodstuffs

Shattering Projectiles

Warwolf Trebuchet

Counterweight Defenses

Siege Carpentry

Greek Fire Projectiles

Herbal Medicine

Local Knowledge

Herbal Medicine (Improved)

Incendiary Arrows

Lamellar Armor (4/6)

Lamellar Armor (3/6)

Lightweight Beams

Lightweight Beams (Improved)

Military Academy

Military Academy (Improved)

Monastic Shrines

Proselytization

Preservation of Knowledge

Professional Scouts

Survival Techniques

Collective Hunting

Hunting Tradition

Public Libraries

Roller Shutter Triggers

Roller Shutter Triggers (Improved)

Advancement (Bonus Culture Wing)

Logistics (Bonus Culture Wing)

Growth (Bonus Economic Wing)

Industry (Bonus Economic Wing)

Advancement (Castle Culture Wing)

Logistics (Castle Culture Wing)

Growth (Castle Economic Wing)

Industry (Castle Economic Wing)

Advancement (Feudal Culture Wing)

Logistics (Feudal Culture Wing)

Growth (Feudal Economic Wing)

Industry (Feudal Economic Wing)

Advancement (Imperial Culture Wing)

Logistics (Imperial Culture Wing)

Growth (Imperial Economic Wing)

Industry (Imperial Economic Wing)

Eastern Mercenary Contract

Silk Road Mercenary Contract

Western Mercenary Contract

Veteran Contract

Ferocious Speed

Siege Engineering

Siege Engineering (Improved)

Teardrop Shields

Additional Barrels

Ancient Techniques

Battle Hardened

Extra Materials

Imperial Examinations

Advanced Administration

Fine Tuned Guns

Reinforced Foundations

Village Fortresses

Two-Handed Weapons

Castle Age King

Imperial Age King

Cantled Saddles

Crossbow Stirrups

Enlistment Incentives

Ordinance Company

Archery Range Reinforcements

Barracks Reinforcements

Battlefield Salvage

Burgundian Imports

Collar of Esses

Rule of Templars

Knight Poleaxes

Condensed Land Practices

Open Field System

Exact Militia Program

Muster the Nobles

Military Tactics Training

Ships of the Crown

Synchronized Shot

Throwing Dagger Drills

Castle Age Shinobi

Imperial Age Shinobi

Shogunate Castle

Five Mountain Ministries

Kabura-ya Whistling Arrow

Champion Companions

Field Commander

Gunpowder Monarch

Path of the Archer

Companion Equipment

Alliance Conducted at Sea

Meng'an Mouke Emplacement

Padded Lamellar

Mounted Training

Desert Citadels

Military Affairs Bureau

Curse of Auliya

Treasure Towers

Imperial Red Seals

Regional Inspection

Ruinous Blinding

Additional Torches

Additional Torches (Improved)

Steppe Lancers (Improved)

Superior Mobility

Superior Mobility (Improved)

Whistling Arrows

Whistling Arrows (Improved)

Yam Network (Improved)

Advanced Academy

Anatolian Hills

Castle Age Militia

Imperial Age Militia

Siege Crew Training

Cross Folded Armor

Lightweight Blades

Tanegashima Tate

Mounted Samurai Odachi

Yatai Farm Gather

Dynastic Protectors

Hard Cased Bombs

Lettre de Change

Unique

Economic Technology

100

25045s

Available for 1 civilization

Unlocks the Pilgrim Loan abilities, which loan a large sum of food for a return in gold over time.

Researched at

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Stone Commerce (Improved)

Naval Arrowslits

Springald Crews

Liquid Explosives

Thunderclap Bombs

Salvaged Materials

Naval Crossbows

Naval Springald Emplacement

Adaptable Hulls

Tughlaqabad Fort Overwatch

Handcannon Slits

Bed Crossbow Emplacement

Trebuchet Emplacement

Javelin Emplacement

Great Bombard Emplacement

Siha Bow Limbs (Improved)

Royal Bloodlines

Blade Inlaying (3/6)

Blade Inlaying (5/6)

Blade Inlaying (6/6)

Blade Inlaying (1/6)

Blade Inlaying (2/6)

Blade Inlaying (4/6)

Scale Barding (1/6)

Scale Barding (4/6)

Scale Barding (3/6)

Scale Barding (2/6)

Scale Barding (5/6)

Scale Barding (6/6)

Farima Leadership

Biology (Improved)

Boyar's Fortitude

Kobuse-gitae

Reinforced Defenses

Flying Fire Battalions

Stronghold Defensive Arrowslits

Fortifications (3/6)

Fortifications (4/6)

Fortifications (5/6)

Fortifications (2/6)

Fortifications (1/6)

Fortifications (6/6)

Butted Chainmail (1/6)

Butted Chainmail (5/6)

Butted Chainmail (4/6)

Butted Chainmail (3/6)

Pattern Welding (4/6)

Pattern Welding (2/6)

Pattern Welding (5/6)

Pattern Welding (6/6)

Pattern Welding (1/6)

Pattern Welding (3/6)

Elite Army Tactics (Improved)

Roar of the Dragon

Safe Passage

Rotation Grazing

Horticulture (Improved)

Fudasashi

Textiles (Improved)

Wheelbarrow (Improved)

Lightweight Frames

Porcupine Defense

Reinforced Axles

Iron Fittings (2/6)

Iron Fittings (5/6)

Iron Fittings (1/6)

Iron Fittings (6/6)

Iron Fittings (4/6)

Iron Fittings (3/6)

Prolonged Siege

Geometry (Improved)

Greased Axles (Improved)

Siege Works (Improved)

Cloud of Terror

Lamellar Armor (5/6)

Lamellar Armor (1/6)

Lamellar Armor (2/6)

Lamellar Armor (6/6)

Sharpening Stones (1/6)

Sharpening Stones (4/6)

Sharpening Stones (5/6)

Sharpening Stones (6/6)

Sharpening Stones (2/6)

Sharpening Stones (3/6)

Precision Training

Efficient Production

Cistercian Abbeys

Inspired Warriors

Piety (Improved)

Tithe Barns (Improved)

Saint's Veneration

Mohe Ancestry

Survival Techniques (Improved)

Master Smiths (Bonus Military Wing)

Reinforcement (Bonus Military Wing)

Advisors (Bonus Trade Wing)

Bazaar (Bonus Trade Wing)

Master Smiths (Castle Military Wing)

Reinforcement (Castle Military Wing)

Advisors (Castle Trade Wing)

Bazaar (Castle Trade Wing)

Kingdom of Castile

Republic of Genoa

Master Smiths (Feudal Military Wing)

Reinforcement (Feudal Military Wing)

Advisors (Feudal Trade Wing)

Bazaar (Feudal Trade Wing)

Khan and Torguuds

Kingdom of France

Knights Hospitaller

Principality of Antioch

Master Smiths (Imperial Military Wing)

Reinforcement (Imperial Military Wing)

Advisors (Imperial Trade Wing)

Bazaar (Imperial Trade Wing)

Yam Network Trade

Kingdom of Poland

Republic of Venice

Collateral Damage

Elephant Caretakers

Reinforced Arm Ballista

Upgrade to Elite

Tower Shields

Beachhead

Earthen Core Walls

Glorious Charge

Increased Supplies

Khan Debuff Arrow

Stables Reinforcements

Unlock Kharash Edict

Unlock Stockyard Edict

Mountain Top Training

Path of the Warrior

Rider Companions

Single Whip Reform

Raid Bounty (Improved)

Stone Bounty (Improved)

Janissary Company

Military Campus