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'''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).
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) =
= Tier 1 (100 Science) =


{| class="wikitable"
{| class="wikitable sortable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Leads To !! 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 || Husbandry, Labor Force, Steel (with Military Drill) || Warrior
|-
|-
| <div id="Stonecutting">Stonecutting</div>||None||[[#Drama|Drama]]<br>[[#Polis|Polis]]<br>Stone Boost|| ||Fort<br>Quarry||
| Stonecutting || None || || Fort, Quarry
|-
|-
| <div id="Trapping">Trapping</div>||None||[[#Military Drill|Military Drill]]||Slinger||Camp||
| Trapping || None || || Slinger, Camp
|-
|-
| <div id="Divination">Divination</div>||None||[[#Aristocracy|Aristocracy]]|| ||Shrine||
| Divination || None || Aristocracy || Shrine
|-
|-
| <div id="Administration">Administration</div>||None||[[#Rhetoric|Rhetoric]]<br>[[Units#Worker|Free Worker]]|| ||Treasury<br>Granary||
| Administration || None || Rhetoric, Free Worker || Treasury, Granary
|}
|}


;Stone Boost
= Tier 2 (150 Science) =
:+200 {{icon|stone}}


= Tier 2 (150 Science) =


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


;Border Boost
Border Boost - All Cities +6 Border Tiles
:(All Cities) +6 Border Tiles
Food Boost - +200 Food
;Food Boost
:+200 {{icon|food}}


= Tier 3 (250 Science) =
= Tier 3 (250 Science) =


{| class="wikitable"
 
{| class="wikitable sortable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Leads To !! 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
| Spoked 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
| Forestry || Polis || Land Consolidation, Free Court Scholar, Free Heavy Chariot, Free Light Chariot || Lumbermill, Enlightenment
|-
|-
| <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|| ||
| Steel || Military Drill, Ironworking || ||  
|-
|-
| <div id="Sovereignty">Sovereignty</div>||[[#Aristocracy|Aristocracy]]<br>[[#Rhetoric|Rhetoric]]||[[#Machinery|Machinery]]<br>Civics Boost|| || ||Tyranny / Constitution
| Sovereignty || Aristocracy, Rhetoric || ||  
|-
|-
| <div id="Metaphysics">Metaphysics</div>||[[#Rhetoric|Rhetoric]]||[[#Cartography|Cartography]] (with [[#Navigation|Navigation]])|| || ||Convert to State Religion<br>High Synod<br>Archive I<br>Redemption
| Metaphysics || Rhetoric || Cartography (with Navigation) || Convert to State Religion, High Synod, Archive I, Redemption,
|}
|}
;Civics Boost
:+800 {{icon|civics}}
;Orders Boost
:+20 {{icon|orders}}
;Training Boost:
:+800 {{icon|training}}


= Tier 4 (400 Science) =
= Tier 4 (400 Science) =


{| class="wikitable"
{| class="wikitable sortable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Leads To !! Effects
|-
|-
| <div id="Coinage">Coinage</div>||[[#Navigation|Navigation]]||[[#Lateen Sail|Lateen Sail]] (with [[#Cartography|Cartography]])<br>Money Boost|| ||Market||Pacify City<br>Automate Workers
| Coinage || Navigation || Money Boost, Lateen Sail (with Cartography) || Market, Pacify City, 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 || Scholarship, Stirrups (with Spoked Wheel), Free Court Minister || Courthouse, Divine Rule / Legal Code
|-
|-
| <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
| Portcullis || Drama || ||  
|-
|-
| <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 || Cohorts (with Battle Line), Manor (with Composite Bow), Free Camel Archer, Free War Elephant || Camel Archer, War Elephant, Grove
|-
|-
| <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||
| Composite Bow || Military Drill || Manor (with Land Consolidation), Free Akkadian Archer, Free Archer, Free Palton Cavalry || Archer, Range
|-
|-
| <div id="Monasticism">Monasticism</div>||[[#Aristocracy|Aristocracy]]||[[#Doctrine|Doctrine]]|| ||Monastery||Monotheism / Polytheism
| Monasticism || Aristocracy || Doctrine || Monastery, Monotheism / Polytheism
|-
|-
| <div id="Machinery">Machinery</div>||[[#Sovereignty|Sovereignty]]||[[#Hydraulics|Hydraulics]]<br>[[Units#Onager|Free Onager]]||Onager|| ||
| Machinery || Sovereignty || Hydraulics, Free Onager || Onager
|}
|}
;Money Boost
:+200 {{icon|money}}


= Tier 5 (600 Science) =
= Tier 5 (600 Science) =


{| class="wikitable"
{| class="wikitable sortable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Leads To !! Effects
 
|-
|-
| <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|| ||
| Stirrups || Citizenship, Spoked Wheel || ||
|-
|-
| <div id="Architecture">Architecture</div>||[[#Portcullis|Portcullis]]||[[#Vaulting|Vaulting]]<br>[[Units#Siege Tower|Free Siege Tower]]|| ||Bath||Philosophy / Engineering
| Architecture || Portcullis || Vaulting, Free Siege Tower || Bath, Philosophy / Engineering
|-
|-
| <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
| Manor || Composite Bow, Land Consolidation || Bodkin Arrow, Goods Boost, Free Turreted Elephant || Conscript, Professional Army / Volunteers
|-
|-
| <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|| ||
| Battle Line || Phalanx, Steel || Barding (with Martial Code), Cohorts (with Land Consolidation), Free Court Soldier || Maceman
|-
|-
| <div id="Doctrine">Doctrine</div>||[[#Monasticism|Monasticism]]|| || ||Temple||Tolerance / Orthodoxy
| Doctrine || Monasticism || || Temple, Tolerance / Orthodoxy
|-
|-
| <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||
| Hydraulics || Machinery || Windlass (with Scholarship), Ballistics (with Cartography), Free Ballista || Ballista, Mill
|-
|-
| <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 || Lateen Sail (with Coinage), Ballistics (with Hydraulics) || Trireme, Harbor, Steal Research
|}
|}


;Goods Boost
Goods Boost - +400 Iron, +400 Stone, +400 Lumber
:+400 {{icon|iron}}, +400 {{icon|stone}}, +400 {{icon|wood}}


= Tier 6 (1000 Science) =
= Tier 6 (1000 Science) =


{| class="wikitable"
{| class="wikitable sortable"
|-
|-
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
! Technology !! Prerequisites !! Leads To !! 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
| Lateen Sail || Cartography, Coinage || Fiscal Policy (with Jurisprudence), Free Dromon || Dromon, Autarky / Trade League
|-
|-
| <div id="Jurisprudence">Jurisprudence</div>||[[#Scholarship|Scholarship]]||[[#Fiscal Policy|Fiscal Policy]] (with [[#Lateen Sail|Lateen Sail]])<br>Free Court Minister|| || ||Insurrection<br>Guilds / Elites
| Jurisprudence || Scholarship || Fiscal Policy (with Lateen Sail), Free Court Minister || Insurrection, Guilds / Elites
|-
|-
| <div id="Martial Code">Martial Code</div>||[[#Stirrups|Stirrups]]||[[#Barding|Barding]] (with [[#Battle Line|Battle Line]])||Towers|| ||Pilgrimage / Holy War
| Martial Code || Stirrups || Barding (with Battle Line) || Towers, Pilgrimage / Holy War
|-
|-
| <div id="Vaulting">Vaulting</div>||[[#Architecture|Architecture]]||Happiness Boost|| ||Cathedral||Iconography / Calligraphy
| Vaulting || Architecture || ||  
|-
|-
| <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|| ||
| Bodkin Arrow || Manor || Infantry Square, Free Longbowman, Free Cimmerian Archer || Longbowman
|-
|-
| <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|| ||
| Windlass || Torsion || ||  
|}
|}
;Happiness Boost
:(All Cities) - +1 Happiness Level


= Tier 7 (1500 Science) =
= Tier 7 (1500 Science) =


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


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


{| class="wikitable"
{| class="wikitable sortable"
|-
|-
! Technology !! Prerequisites !! Other Unlocks
! Technology !! Prerequisites !! Leads To !! Effects
|-
|-
| <div id="Economic Reform">Economic Reform</div>||[[#Fiscal Policy|Fiscal Policy]]||Court Merchant<br>+1 Victory Point
| Economic Reform || Fiscal Policy || || Court Merchant, +1 Victory Point
|-
|-
| <div id="Military Prestige">Military Prestige</div>||[[#Barding|Barding]]<br>[[#Infantry Square|Infantry Square]]<br>[[#Cohorts|Cohorts]]||Court Soldier<br>+1 Victory Point
| Military Prestige || Barding, Infantry Square, Cohorts || || Court Soldier, +1 Victory Point
|-
|-
| <div id="Industrial Progress">Industrial Progress</div>||[[#Chain Drive|Chain Drive]]<br>[[#Ballistics|Ballistics]]||Court Minister<br>+1 Victory Point
| Industrial Progress || Chain Drive, Ballistics || || Court Minister, +1 Victory Point
|}
|}


All Tier 8 technologies can be researched multiple times
All Tier 8 technologies can be researched multiple times

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