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[[File:TechTree.jpg|right|thumb|400px|The tech tree]]
[[File:Techs.jpg|right|thumb|400px|The tech tree from early access builds]]


'''Techs''' (short for "technologies") are empire upgrades that cost [[Resources|science]] and provide various benefits and make additional techs and some [[laws]] and [[events]] available.
'''Techs''' (short for "technologies") are empire upgrades that cost [[Resources|science]] and provide various benefits and make additional techs and some [[laws]] and [[events]] available.


All available techs are placed in a draw pile. 4 techs (5 if you built the Oracle) will be randomly selected and presented to the player to choose from. 1 can be selected, the others will be placed into the discard pile (boosts or free units will be discarded). If your leader is a scholar you can do a 1-time redraw of available techs from the draw pile (this will not cause boosts or free unit cards to be discarded).
= Tier 1 (80 Science) =
 
After a tech is completed, any new available techs are added to the draw pile, and a new set of techs will be selected from the draw pile for the player to choose from. Techs will be moved from the discard pile to the draw pile when the draw pile is empty.
 
 
= Tier 1 (100 Science) =


{| class="wikitable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Total Science Required !! Effects
|-
|-
| <div id="Ironworking">Ironworking</div>||None||[[#Husbandry|Husbandry]]<br>[[#Labor Force|Labor Force]]<br>[[#Steel|Steel]] (with [[#Military Drill|Military Drill]])||Warrior|| ||
| Ironworking || None || 80[[File:Science.png|12px|]] ||
|-
|-
| <div id="Stonecutting">Stonecutting</div>||None||[[#Drama|Drama]]<br>[[#Polis|Polis]]<br>Stone Boost|| ||Fort<br>Quarry||
| Stonecutting || None ||80[[File:Science.png|12px|]] ||
|-
|-
| <div id="Trapping">Trapping</div>||None||[[#Military Drill|Military Drill]]||Slinger||Camp||
| Trapping ||None || 80[[File:Science.png|12px|]] ||
|-
|-
| <div id="Divination">Divination</div>||None||[[#Aristocracy|Aristocracy]]|| ||Shrine||
| Divination || None || 80[[File:Science.png|12px|]] ||
|-
|-
| <div id="Administration">Administration</div>||None||[[#Rhetoric|Rhetoric]]<br>[[Units#Worker|Free Worker]]|| ||Treasury<br>Granary||
| Administration || None || 80[[File:Science.png|12px|]] ||
|}
|}


;Stone Boost
= Tier 2 (120 Science) =
:+200 {{icon|stone}}


= Tier 2 (150 Science) =


{| class="wikitable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Total Science Required !! Effects
|-
|-
| <div id="Labor Force">Labor Force</div>||[[#Ironworking|Ironworking]]||[[#Navigation|Navigation]]<br>[[#Phalanx|Phalanx]]|| || ||Roads<br>Slavery / Freedom<br>Revelation
| Labor Force || Ironworking || 200[[File:Science.png|12px|]] ||
|-
|-
| <div id="Husbandry">Husbandry</div>||[[#Ironworking|Ironworking]]||[[#Spoked Wheel|Spoked Wheel]]<br>Food Boost|| ||Pasture||
| Husbandry || Ironworking || 200[[File:Science.png|12px|]] ||
|-
|-
| <div id="Drama">Drama</div>||[[#Stonecutting|Stonecutting]]||[[#Portcullis|Portcullis]] (with [[#Spoked Wheel|Spoked Wheel]])<br>[[Units#Settler|Free Settler]]|| ||Odeon||Gnosticism
| Drama ||Stonecutting || 200[[File:Science.png|12px|]] ||
|-
|-
| <div id="Polis">Polis</div>||[[#Stonecutting|Stonecutting]]||[[#Forestry|Forestry]]|| ||Hamlet||Ask To Declare War
| Polis || Stonecutting, Trapping || 320[[File:Science.png|12px|]] ||
|-
|-
| <div id="Military Drill">Military Drill</div>||[[#Trapping|Trapping]]||[[#Composite Bow|Composite Bow]]<br>[[#Steel|Steel]] (with [[#Ironworking|Ironworking]])|| ||Barracks||Rally Troops
| Trapping || Military Drill || 200[[File:Science.png|12px|]] ||
|-
|-
| <div id="Aristocracy">Aristocracy</div>||[[#Divination|Divination]]||[[#Sovereignty|Sovereignty]] (with [[#Rhetoric|Rhetoric]])<br>[[#Monasticism|Monasticism]]<br>Border Boost|| || ||Ambassador<br>Centralization / Vassalage
| Aristrocracy || Divination || 200[[File:Science.png|12px|]] ||
|-
|-
| <div id="Rhetoric">Rhetoric</div>||[[#Administration|Administration]]||[[#Metaphysics|Metaphysics]]<br>[[#Sovereignty|Sovereignty]] (with [[#Aristocracy|Aristocracy]])|| || ||Forum I<br>Epics / Exploration<br>Dualism
| Sovereignty || Divination, Administration || 320 [[File:Science.png|12px|]] ||
|-
| Rhetoric || Administration || 200[[File:Science.png|12px|]] ||
|}
|}


;Border Boost
= Tier 3 (200 Science) =
:(All Cities) +6 Border Tiles
;Food Boost
:+200 {{icon|food}}


= Tier 3 (250 Science) =


{| class="wikitable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Effects
|-
|-
| <div id="Navigation">Navigation</div>||[[#Labor Force|Labor Force]]||[[#Coinage|Coinage]]<br>[[#Cartography|Cartography]] (with [[#Metaphysics|Metaphysics]])<br>[[Units#Bireme|Free Bireme]]||Bireme|| ||Colonies / Serfdom<br>Can automate scouts
| Navigation || Labor Force ||  
|-
|-
| <div id="Phalanx">Phalanx</div>||[[#Labor Force|Labor Force]]||[[#Citizenship|Citizenship]]<br>[[#Battle Line|Battle Line]] (with [[#Steel|Steel]])<br>[[Units#Hoplite|Free Hoplite]]<br>Orders Boost||Spearman|| ||
| Phalanx || Labor Force ||  
|-
|-
| <div id="Spoked Wheel">Spoked Wheel</div>||[[#Husbandry|Husbandry]]||[[#Portcullis|Portcullis]] (with [[#Drama|Drama]])<br>[[#Stirrups|Stirrups]] (with [[#Citizenship|Citizenship]])<br>[[Units#Chariot|Free Chariot]]||Chariot|| ||Chancellor
| The Wheel || Husbandry
|-
|-
| <div id="Forestry">Forestry</div>||[[#Polis|Polis]]||[[#Land Consolidation|Land Consolidation]]<br>Free Court Scholar<br>[[Units#Heavy Chariot|Free Heavy Chariot]]<br>[[Units#Light Chariot|Free Light Chariot]]|| ||Lumbermill||Enlightenment
| Ramparts ||Drama ||  
|-
|-
| <div id="Steel">Steel</div>||[[#Ironworking|Ironworking]]<br>[[#Military Drill|Military Drill]]||[[#Battle Line|Battle Line]] (with [[#Phalanx|Phalanx]])<br>[[Units#African Elephant|Free African Elephant]]<br>[[Units#Hastatus|Free Hastatus]]<br>Training Boost||Axeman|| ||
| Forestry || Polis ||
|-
|-
| <div id="Sovereignty">Sovereignty</div>||[[#Aristocracy|Aristocracy]]<br>[[#Rhetoric|Rhetoric]]||[[#Machinery|Machinery]]<br>Civics Boost|| || ||Tyranny / Constitution
| Battleline || Military Drill, Ironworking ||  
|-
|-
| <div id="Metaphysics">Metaphysics</div>||[[#Rhetoric|Rhetoric]]||[[#Cartography|Cartography]] (with [[#Navigation|Navigation]])|| || ||Convert to State Religion<br>High Synod<br>Archive I<br>Redemption
| Monasticism || Aristocracy ||  
|-
| Composite Bow || Rhetoric ||  
|-
| Metaphysics ||Rhetoric ||  
|}
|}
;Civics Boost
:+800 {{icon|civics}}
;Orders Boost
:+20 {{icon|orders}}
;Training Boost:
:+800 {{icon|training}}


= Tier 4 (400 Science) =
= Tier 4 (400 Science) =
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{| class="wikitable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Effects
|-
| <div id="Coinage">Coinage</div>||[[#Navigation|Navigation]]||[[#Lateen Sail|Lateen Sail]] (with [[#Cartography|Cartography]])<br>Money Boost|| ||Market||Pacify City<br>Automate Workers
|-
|-
| <div id="Citizenship">Citizenship</div>||[[#Phalanx|Phalanx]]||[[#Scholarship|Scholarship]]<br>[[#Stirrups|Stirrups]] (with [[#Spoked Wheel|Spoked Wheel]]l)<br>Free Court Minister|| ||Courthouse||Divine Rule / Legal Code
| Citizenship || Phalanx ||  
|-
|-
| <div id="Portcullis">Portcullis</div>||[[#Drama|Drama]]<br>[[#Spoked Wheel|Spoked Wheel]]||[[#Architecture|Architecture]]<br>[[Units#Battering Ram|Free Battering Ram]]<br>[[Units#Maceman|Free Maceman]]|| || ||Spymaster<br>Moat
| Drawbridge || Ramparts ||  
|-
|-
| <div id="Land Consolidation">Land Consolidation</div>||[[#Forestry|Forestry]]||[[#Cohorts|Cohorts]] (with [[#Battle Line|Battle Line]])<br>[[#Manor|Manor]] (with [[#Composite Bow|Composite Bow]])<br>[[Units#Camel Archer|Free Camel Archer]]<br>[[Units#War Elephant|Free War Elephant]]||Camel Archer<br>War Elephant||Grove||
| Land Consolidation || Forestry ||
|-
|-
| <div id="Composite Bow">Composite Bow</div>||[[#Military Drill|Military Drill]]||[[#Manor|Manor]] (with [[#Land Consolidation|Land Consolidation]])<br>[[Units#Akkadian Archer|Free Akkadian Archer]]<br>[[Units#Archer|Free Archer]]<br>[[Units#Palton Cavalry|Free Palton Cavalry]]||Archer||Range||
| Steel ||Forestry, Battleline ||  
|-
|-
| <div id="Monasticism">Monasticism</div>||[[#Aristocracy|Aristocracy]]||[[#Doctrine|Doctrine]]|| ||Monastery||Monotheism / Polytheism
| Doctrine || Monasticism, Metaphysics ||
|-
|-
| <div id="Machinery">Machinery</div>||[[#Sovereignty|Sovereignty]]||[[#Hydraulics|Hydraulics]]<br>[[Units#Onager|Free Onager]]||Onager|| ||
| Siegecraft || Sovereignty ||  
|}
|}


;Money Boost
= Tier 5 (800 Science) =
:+200 {{icon|money}}
 
= Tier 5 (600 Science) =


{| class="wikitable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Effects
|-
| Coinage || Navigation ||
|-
|-
| <div id="Scholarship">Scholarship</div>||[[#Citizenship|Citizenship]]||[[#Jurisprudence|Jurisprudence]]<br>[[#Windlass|Windlass]] (with [[#Hydraulics|Hydraulics]])<br>Free Court Scholar|| ||Library||Expose Agent Network<br>Move Agent Network
| Scholarship || Citizenship ||  
|-
|-
| <div id="Stirrups">Stirrups</div>||[[#Citizenship|Citizenship]]<br>[[#Spoked Wheel|Spoked Wheel]]||[[#Martial Code|Martial Code]]<br>[[Units#Horse Archer|Free Horse Archer]]<br>[[Units#Horseman|Free Horseman]]<br>[[Units#Kushite Cavalry|Free Kushite Cavalry]]<br>[[Units#Three Man Chariot|Free Three Man Chariot]]||Horse Archer<br>Horseman|| ||
| Torsion || Phalanx, Siegecraft ||  
|-
|-
| <div id="Architecture">Architecture</div>||[[#Portcullis|Portcullis]]||[[#Vaulting|Vaulting]]<br>[[Units#Siege Tower|Free Siege Tower]]|| ||Bath||Philosophy / Engineering
| Stirrups || Spoked Wheel, Land Consolodation ||  
|-
|-
| <div id="Manor">Manor</div>||[[#Composite Bow|Composite Bow]]<br>[[#Land Consolidation|Land Consolidation]]||[[#Bodkin Arrow|Bodkin Arrow]]<br>[[Units#Turreted Elephant|Free Turreted Elephant]]<br>Goods Boost||Conscript|| ||Professional Army / Volunteers
| Architecture || Drawbridge ||
|-
|-
| <div id="Battle Line">Battle Line</div>||[[#Phalanx|Phalanx]]<br>[[#Steel|Steel]]||[[#Barding|Barding]] (with [[#Martial Code|Martial Code]])<br>[[#Cohorts|Cohorts]] (with [[#Land Consolidation|Land Consolidation]])<br>Free Court Soldier||Maceman|| ||
| Manor || Land Consolodation, Composite Bow ||  
|-
|-
| <div id="Doctrine">Doctrine</div>||[[#Monasticism|Monasticism]]|| || ||Temple||Tolerance / Orthodoxy
| Machinery || Siegecraft ||  
|-
|-
| <div id="Hydraulics">Hydraulics</div>||[[#Machinery|Machinery]]||[[#Windlass|Windlass]] (with [[#Scholarship|Scholarship]])<br>[[#Ballistics|Ballistics]] (with [[#Cartography|Cartography]])<br>[[Units#Ballista|Free Ballista]]||Ballista||Mill||
| Mounted Archery|| Siegecraft ||  
|-
|-
| <div id="Cartography">Cartography</div>||[[#Metaphysics|Metaphysics]]<br>[[#Navigation|Navigation]]||[[#Lateen Sail|Lateen Sail]] (with [[#Coinage|Coinage]])<br>[[#Ballistics|Ballistics]] (with [[#Hydraulics|Hydraulics]])||Trireme||Harbor||Steal Research
| Cartography || Metaphysics, Navigation ||  
|}
|}


;Goods Boost
= Tier 6 (1600 Science) =
:+400 {{icon|iron}}, +400 {{icon|stone}}, +400 {{icon|wood}}
 
= Tier 6 (1000 Science) =


{| class="wikitable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Effects
|-
|-
| <div id="Lateen Sail">Lateen Sail</div>||[[#Cartography|Cartography]]<br>[[#Coinage|Coinage]]||[[#Fiscal Policy|Fiscal Policy]] (with [[#Jurisprudence|Jurisprudence]])<br>[[Units#Dromon|Free Dromon]]||Dromon|| ||Autarky / Trade League
| Hydraulics || Coinage ||  
|-
|-
| <div id="Jurisprudence">Jurisprudence</div>||[[#Scholarship|Scholarship]]||[[#Fiscal Policy|Fiscal Policy]] (with [[#Lateen Sail|Lateen Sail]])<br>Free Court Minister|| || ||Insurrection<br>Guilds / Elites
| Lateen Sail || Scholarship ||  
|-
|-
| <div id="Martial Code">Martial Code</div>||[[#Stirrups|Stirrups]]||[[#Barding|Barding]] (with [[#Battle Line|Battle Line]])||Towers|| ||Pilgrimage / Holy War
| Warrior Code || Architecture ||
|-
|-
| <div id="Vaulting">Vaulting</div>||[[#Architecture|Architecture]]||Happiness Boost|| ||Cathedral||Iconography / Calligraphy
| Bodkin Arrow || Steel ||  
|-
|-
| <div id="Bodkin Arrow">Bodkin Arrow</div>||[[#Manor|Manor]]||[[#Infantry Square|Infantry Square]]<br>[[Units#Longbowman|Free Longbowman]]<br>[[Units#Cimmerian Archer|Free Cimmerian Archer]]||Longbowman|| ||
| Aesthesics || Doctrine, Architecture ||
|-
|-
| <div id="Windlass">Windlass</div>||[[#Scholarship|Scholarship]]<br>[[#Hydraulics|Hydraulics]]||[[#Chain Drive|Chain Drive]]<br>[[Units#Cataphract Archer|Free Cataphract Archer]]<br>[[Units#Crossbowman|Free Crossbowman]]||Crossbowman|| ||
| Unit Tactics || Doctrine ||  
|-
| Strategy || Cartography, Torsion ||
|}
|}


;Happiness Boost
= Tier 7 (3200 Science) =
:(All Cities) - +1 Happiness Level
 
= Tier 7 (1500 Science) =


{| class="wikitable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Effects
|-
|-
| <div id="Fiscal Policy">Fiscal Policy</div>||[[#Lateen Sail|Lateen Sail]]<br>[[#Jurisprudence|Jurisprudence]]||[[#Economic Reform|Economic Reform]]<br>Free Court Merchant|| ||Coin Debasement / Monetary Reform
| Vaulting || Hydraulics, Aesthetics ||  
|-
|-
| <div id="Barding">Barding</div>||[[#Steel|Steel]]<br>[[#Martial Code|Martial Code]]||[[#Military Prestige|Military Prestige]] (with [[#Infantry Square|Infantry Square]] and [[#Cohorts|Cohorts]])||Cataphract||
| Jurisprudence || Lateen Sail ||  
|-
|-
| <div id="Infantry Square">Infantry Square</div>||[[#Bodkin Arrow|Bodkin Arrow]]||[[#Military Prestige|Military Prestige]] (with [[#Barding|Barding]] and [[#Cohorts|Cohorts]])<br>Free Court Soldier<br>[[Units#Phalangite|Free Phalangite]]||Pikeman||
| Barding || Stirrups, Warrior Code ||
|-
|-
| <div id="Cohorts">Cohorts</div>||[[#Land Consolidation|Land Consolidation]]<br>[[#Battle Line|Battle Line]]||[[#Military Prestige|Military Prestige]] (with [[#Barding|Barding]] and [[#Infantry Square|Infantry Square]])<br>[[Units#Legionary|Free Legionary]]||Swordsman||
| Sarissa || Bodkin Arrow, Citizenship ||  
|-
|-
| <div id="Chain Drive">Chain Drive</div>||[[#Windlass|Windlass]]||[[#Industrial Progress|Industrial Progress]] (with [[#Ballistics|Ballistics]])||Polybolos||
| Fiscal Policy || Unit Tactics, Machinery ||
|-
|-
| <div id="Ballistics">Ballistics</div>||[[#Hydraulics|Hydraulics]]<br>[[#Cartography|Cartography]]||[[#Industrial Progress|Industrial Progress]] (with [[#Chain Drive|Chain Drive]])||Mangonel||
| Windlass || Mounted Archery, Strategy ||  
|}
|}


= Tier 8 (2000 Science) =
= Tier 8 (6400 Science) =


{| class="wikitable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Other Unlocks
! Technology !! Prerequisites !! Effects
|-
|-
| <div id="Economic Reform">Economic Reform</div>||[[#Fiscal Policy|Fiscal Policy]]||Court Merchant<br>+1 Victory Point
| Economic Reform || Jurisprudence ||  
|-
|-
| <div id="Military Prestige">Military Prestige</div>||[[#Barding|Barding]]<br>[[#Infantry Square|Infantry Square]]<br>[[#Cohorts|Cohorts]]||Court Soldier<br>+1 Victory Point
| Military Reform || Sarissa ||  
|-
|-
| <div id="Industrial Progress">Industrial Progress</div>||[[#Chain Drive|Chain Drive]]<br>[[#Ballistics|Ballistics]]||Court Minister<br>+1 Victory Point
| Political Reform || Fiscal Policy ||
|}
|}
All Tier 8 technologies can be researched multiple times

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