Difference between revisions of "Tech Tree"

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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 sortable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Leads To !! Effects
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
|-
|-
| Ironworking || None || Husbandry, Labor Force, Steel (with Military Drill) || Warrior
| <div id="Ironworking">Ironworking</div>||None||[[#Husbandry|Husbandry]]<br>[[#Labor Force|Labor Force]]<br>[[#Steel|Steel]] (with [[#Military Drill|Military Drill]])||Warrior|| ||
|-
|-
| Stonecutting || None || || Fort, Quarry
| <div id="Stonecutting">Stonecutting</div>||None||[[#Drama|Drama]]<br>[[#Polis|Polis]]<br>Stone Boost|| ||Fort<br>Quarry||
|-
|-
| Trapping || None || || Slinger, Camp
| <div id="Trapping">Trapping</div>||None||[[#Military Drill|Military Drill]]||Slinger||Camp||
|-
|-
| Divination || None || Aristocracy || Shrine
| <div id="Divination">Divination</div>||None||[[#Aristocracy|Aristocracy]]|| ||Shrine||
|-
|-
| Administration || None || Rhetoric, Free Worker || Treasury, Granary
| <div id="Administration">Administration</div>||None||[[#Rhetoric|Rhetoric]]<br>[[Units#Worker|Free Worker]]|| ||Treasury<br>Granary||
|}
|}
;Stone Boost
:+200 {{icon|stone}}


= Tier 2 (150 Science) =
= Tier 2 (150 Science) =


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


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


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


 
{| class="wikitable"
{| class="wikitable sortable"
|-
|-
! Technology !! Prerequisites !! Leads To !! Effects
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
|-
|-
| Navigation || Labor Force || ||  
| <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
|-
|-
| Phalanx || 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|| ||
|-
|-
| Spoked Wheel || Husbandry || ||  
| <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
|-
|-
| Forestry || Polis || Land Consolidation, Free Court Scholar, Free Heavy Chariot, Free Light Chariot || Lumbermill, Enlightenment
| <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
|-
|-
| Steel || Military Drill, Ironworking || ||  
| <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|| ||
|-
|-
| Sovereignty || Aristocracy, Rhetoric || ||  
| <div id="Sovereignty">Sovereignty</div>||[[#Aristocracy|Aristocracy]]<br>[[#Rhetoric|Rhetoric]]||[[#Machinery|Machinery]]<br>Civics Boost|| || ||Tyranny / Constitution
|-
|-
| Metaphysics || Rhetoric || Cartography (with Navigation) || Convert to State Religion, High Synod, Archive I, Redemption,
| <div id="Metaphysics">Metaphysics</div>||[[#Rhetoric|Rhetoric]]||[[#Cartography|Cartography]] (with [[#Navigation|Navigation]])|| || ||Convert to State Religion<br>High Synod<br>Archive I<br>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 sortable"
{| class="wikitable"
|-
|-
! Technology !! Prerequisites !! Leads To !! Effects
! Technology !! Prerequisites !! Tech Cards Unlocked !! Units Unlocked !! Improvements Unlocked !! Other Unlocks
|-
|-
| Coinage || Navigation || Money Boost, Lateen Sail (with Cartography) || Market, Pacify City, Automate Workers
| <div id="Coinage">Coinage</div>||[[#Navigation|Navigation]]||[[#Lateen Sail|Lateen Sail]] (with [[#Cartography|Cartography]])<br>Money Boost|| ||Market||Pacify City<br>Automate Workers
|-
|-
| Citizenship || Phalanx || Scholarship, Stirrups (with Spoked Wheel), Free Court Minister || Courthouse, Divine Rule / Legal Code
| <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
|-
|-
| Portcullis || Drama || ||  
| <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
|-
|-
| Land Consolidation || Forestry || Cohorts (with Battle Line), Manor (with Composite Bow), Free Camel Archer, Free War Elephant || Camel Archer, War Elephant, Grove
| <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||
|-
|-
| Composite Bow || Military Drill || Manor (with Land Consolidation), Free Akkadian Archer, Free Archer, Free Palton Cavalry || Archer, Range
| <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||
|-
|-
| Monasticism || Aristocracy || Doctrine || Monastery, Monotheism / Polytheism
| <div id="Monasticism">Monasticism</div>||[[#Aristocracy|Aristocracy]]||[[#Doctrine|Doctrine]]|| ||Monastery||Monotheism / Polytheism
|-
|-
| Machinery || Sovereignty || Hydraulics, Free Onager || Onager
| <div id="Machinery">Machinery</div>||[[#Sovereignty|Sovereignty]]||[[#Hydraulics|Hydraulics]]<br>[[Units#Onager|Free Onager]]||Onager|| ||
|}
|}
;Money Boost
:+200 {{icon|money}}


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


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


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


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


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


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


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


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


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


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

Latest revision as of 04:49, 12 March 2023

The tech tree

Techs (short for "technologies") are empire upgrades that cost 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)[edit]

Technology Prerequisites Tech Cards Unlocked Units Unlocked Improvements Unlocked Other Unlocks
Ironworking
None Husbandry
Labor Force
Steel (with Military Drill)
Warrior
Stonecutting
None Drama
Polis
Stone Boost
Fort
Quarry
Trapping
None Military Drill Slinger Camp
Divination
None Aristocracy Shrine
Administration
None Rhetoric
Free Worker
Treasury
Granary
Stone Boost
+200 Stone.png

Tier 2 (150 Science)[edit]

Technology Prerequisites Tech Cards Unlocked Units Unlocked Improvements Unlocked Other Unlocks
Labor Force
Ironworking Navigation
Phalanx
Roads
Slavery / Freedom
Revelation
Husbandry
Ironworking Spoked Wheel
Food Boost
Pasture
Drama
Stonecutting Portcullis (with Spoked Wheel)
Free Settler
Odeon Gnosticism
Polis
Stonecutting Forestry Hamlet Ask To Declare War
Military Drill
Trapping Composite Bow
Steel (with Ironworking)
Barracks Rally Troops
Aristocracy
Divination Sovereignty (with Rhetoric)
Monasticism
Border Boost
Ambassador
Centralization / Vassalage
Rhetoric
Administration Metaphysics
Sovereignty (with Aristocracy)
Forum I
Epics / Exploration
Dualism
Border Boost
(All Cities) +6 Border Tiles
Food Boost
+200 Food.png

Tier 3 (250 Science)[edit]

Technology Prerequisites Tech Cards Unlocked Units Unlocked Improvements Unlocked Other Unlocks
Labor Force Coinage
Cartography (with Metaphysics)
Free Bireme
Bireme Colonies / Serfdom
Can automate scouts
Phalanx
Labor Force Citizenship
Battle Line (with Steel)
Free Hoplite
Orders Boost
Spearman
Spoked Wheel
Husbandry Portcullis (with Drama)
Stirrups (with Citizenship)
Free Chariot
Chariot Chancellor
Forestry
Polis Land Consolidation
Free Court Scholar
Free Heavy Chariot
Free Light Chariot
Lumbermill Enlightenment
Steel
Ironworking
Military Drill
Battle Line (with Phalanx)
Free African Elephant
Free Hastatus
Training Boost
Axeman
Sovereignty
Aristocracy
Rhetoric
Machinery
Civics Boost
Tyranny / Constitution
Metaphysics
Rhetoric Cartography (with Navigation) Convert to State Religion
High Synod
Archive I
Redemption
Civics Boost
+800 Civics.png
Orders Boost
+20 Orders.png
Training Boost
+800 Training.png

Tier 4 (400 Science)[edit]

Technology Prerequisites Tech Cards Unlocked Units Unlocked Improvements Unlocked Other Unlocks
Coinage
Navigation Lateen Sail (with Cartography)
Money Boost
Market Pacify City
Automate Workers
Citizenship
Phalanx Scholarship
Stirrups (with Spoked Wheell)
Free Court Minister
Courthouse Divine Rule / Legal Code
Portcullis
Drama
Spoked Wheel
Architecture
Free Battering Ram
Free Maceman
Spymaster
Moat
Land Consolidation
Forestry Cohorts (with Battle Line)
Manor (with Composite Bow)
Free Camel Archer
Free War Elephant
Camel Archer
War Elephant
Grove
Composite Bow
Military Drill Manor (with Land Consolidation)
Free Akkadian Archer
Free Archer
Free Palton Cavalry
Archer Range
Monasticism
Aristocracy Doctrine Monastery Monotheism / Polytheism
Machinery
Sovereignty Hydraulics
Free Onager
Onager
Money Boost
+200 Money.png

Tier 5 (600 Science)[edit]

Technology Prerequisites Tech Cards Unlocked Units Unlocked Improvements Unlocked Other Unlocks
Scholarship
Citizenship Jurisprudence
Windlass (with Hydraulics)
Free Court Scholar
Library Expose Agent Network
Move Agent Network
Stirrups
Citizenship
Spoked Wheel
Martial Code
Free Horse Archer
Free Horseman
Free Kushite Cavalry
Free Three Man Chariot
Horse Archer
Horseman
Architecture
Portcullis Vaulting
Free Siege Tower
Bath Philosophy / Engineering
Manor
Composite Bow
Land Consolidation
Bodkin Arrow
Free Turreted Elephant
Goods Boost
Conscript Professional Army / Volunteers
Battle Line
Phalanx
Steel
Barding (with Martial Code)
Cohorts (with Land Consolidation)
Free Court Soldier
Maceman
Doctrine
Monasticism Temple Tolerance / Orthodoxy
Hydraulics
Machinery Windlass (with Scholarship)
Ballistics (with Cartography)
Free Ballista
Ballista Mill
Cartography
Metaphysics
Navigation
Lateen Sail (with Coinage)
Ballistics (with Hydraulics)
Trireme Harbor Steal Research
Goods Boost
+400 Iron.png, +400 Stone.png, +400 Wood.png

Tier 6 (1000 Science)[edit]

Technology Prerequisites Tech Cards Unlocked Units Unlocked Improvements Unlocked Other Unlocks
Lateen Sail
Cartography
Coinage
Fiscal Policy (with Jurisprudence)
Free Dromon
Dromon Autarky / Trade League
Jurisprudence
Scholarship Fiscal Policy (with Lateen Sail)
Free Court Minister
Insurrection
Guilds / Elites
Martial Code
Stirrups Barding (with Battle Line) Towers Pilgrimage / Holy War
Vaulting
Architecture Happiness Boost Cathedral Iconography / Calligraphy
Bodkin Arrow
Manor Infantry Square
Free Longbowman
Free Cimmerian Archer
Longbowman
Windlass
Scholarship
Hydraulics
Chain Drive
Free Cataphract Archer
Free Crossbowman
Crossbowman
Happiness Boost
(All Cities) - +1 Happiness Level

Tier 7 (1500 Science)[edit]

Technology Prerequisites Tech Cards Unlocked Units Unlocked Other Unlocks
Fiscal Policy
Lateen Sail
Jurisprudence
Economic Reform
Free Court Merchant
Coin Debasement / Monetary Reform
Barding
Steel
Martial Code
Military Prestige (with Infantry Square and Cohorts) Cataphract
Infantry Square
Bodkin Arrow Military Prestige (with Barding and Cohorts)
Free Court Soldier
Free Phalangite
Pikeman
Cohorts
Land Consolidation
Battle Line
Military Prestige (with Barding and Infantry Square)
Free Legionary
Swordsman
Chain Drive
Windlass Industrial Progress (with Ballistics) Polybolos
Ballistics
Hydraulics
Cartography
Industrial Progress (with Chain Drive) Mangonel

Tier 8 (2000 Science)[edit]

Technology Prerequisites Other Unlocks
Economic Reform
Fiscal Policy Court Merchant
+1 Victory Point
Military Prestige
Barding
Infantry Square
Cohorts
Court Soldier
+1 Victory Point
Industrial Progress
Chain Drive
Ballistics
Court Minister
+1 Victory Point

All Tier 8 technologies can be researched multiple times