Technology

Technology works like a card deck. Each nation will be dealt some technology cards from the top of the Draw Pile and may choose one of them to research. The technologies that were not chosen as well as any newly unlocked technology will be placed in the Discard Pile. Once the Draw Pile is empty all cards from the Discard Pile will be shuffled into the Draw Pile. The game may recommend certain technologies to research, indicated by a star on the top-left of the card. Nations that have a Nation Leader with the Scholar archetype will be able to redraw once per year.

Certain technologies may add a Bonus Card to the Discard Pile. Bonus Cards are minor technologies that are lost permanently if not researched when the card is drawn.

Tech tree

List of technologies

Tier 1 technologies

Tier 1 technologies cost 80 Science.

Technology	Unlocks
Ironworking	Unit: Warrior
Stonecutting	Improvement: Fort, Quarry Bonus Card: Stone Boost
Trapping	Improvement: Camp Unit: Slinger
Divination	Improvement: Shrine
Administration	Improvement: Granary Project: Treasury Bonus Card: Free Worker

Tier 2 technologies

Tier 2 technologies cost 120 Science.

Technology	Unlocks
Labor Force	Unlocks: Road Law Category: Slavery - Freedom Theology: Revelation
Husbandry	Improvement: Pasture Bonus Card: Food Boost
Drama	Unlocks: Music Player Improvement: Odeon Theology: Gnosticism Bonus Card: Free Settler
Polis	Unlocks: Ask to declare War Improvement: Hamlet Project: Walls
Military Drill	Action: Rally Troops Improvement: Barracks
Aristocracy	Council: Ambassador Law Category: Centralization - Vassalage Bonus Card: Border Boost
Rhetoric	Law Category: Epics - Exploration Project: Forum Theology: Dualism

Tier 3 technologies

Tier 3 technologies cost 200 Science.

Technology	Unlocks
Navigation	Unlocks: Automate (Scout) Law Category: Colonies - Serfdom Unit: Bireme
Phalanx	Unit: Spearman Bonus Card: Orders Boost
Spoked Wheel	Council: Chancellor Unit: Chariot Bonus Card: File:BONUS EXOTIC FURS.png Free Exotic Furs
Forestry	Improvement: Lumbermill Theology: Enlightenment Bonus Card: Free Archer Bonus Card: File:BONUS EBONY.png Free Ebony
Steel	Unit: Axeman Bonus Card: Training Boost Bonus Card: Free Bireme
Sovereignty	Law Category: Tyranny - Constitution Bonus Card: Civics Boost Bonus Card: Free Chariot
Metaphysics	Unlocks: Convert to State Religion, High Synod Project: Archive Theology: Redemption Bonus Card: Free Court Scholar

Tier 4 technologies

Tier 4 technologies cost 400 Science.

Technology	Unlocks
Coinage	Unlocks: Automate (Worker), Pacify City Improvement: Market Bonus Card: Money Boost Bonus Card: File:BONUS SILK.png Free Silk
Architecture	Improvement: Bath Law Category: Philosophy - Engineering Bonus Card: File:BONUS PERFUME.png Free Perfume
Citizenship	Improvement: Courthouse Law Category: Divine Rule - Legal Code Bonus Card: Free Court Minister
Portcullis	Council: Spymaster Project: Moat Bonus Card: Free Onager
Land Consolidation	Improvement: Grove Unit: Camel Archer, War Elephant Free Horseman Free Horse Archer
Composite Bow	Improvement: Range Unit: Archer Bonus Card: Free Ballista
Monasticism	Improvement: Monastery Law Category: Monotheism - Polytheism Free Camel Archer
Machinery	Unit: Onager Free War Elephant Free Goods Boost

Tier 5 technologies

Tier 5 technologies cost 600 Science.

Technology	Unlocks
Scholarship	Unlocks: Expose Agent Network, Move Agent Network Improvement: Library Bonus Card: Free Court Scholar
Stirrups	Unit: Horseman, Horse Archer
Manor	Unit: Conscript Law Category: Professional Army - Volunteeersy Bonus Card: Free Longbowman
Battle Line	Unit: Maceman Bonus Card: Free Court Soldier
Doctrine	Improvement: Temple Law Category: Tolerance - Orthodoxy
Hydraulics	Improvement: Watermill, Windmill Unit: Ballista
Cartography	Unlocks: Steal Research Improvement: Harbor Unit: Trieme

Tier 6 technologies

Tier 6 technologies cost 1000 Science.

Technology	Unlocks
Lateen Sail	Unit: Dromon Law Category: Autarky - Trade League Bonus Card: File:BONUS PORCELAIN.png Free Porcelain
Jurisprudence	Unlocks: Insurrection Law Category: Guilds - Elites Bonus Card: Free Court Minister
Martial Code	Project: Towers Law Category: Pilgrimage - Holy War
Bodkin Arrow	Unit: Longbowman
Windlass	Unit: Crossbowman

Tier 7 technologies

Tier 7 technologies cost 1500 Science.

Technology	Unlocks
Fiscal Policy	Law Category: Coin Debasement - Monetary Reform Bonus Card: Free Court Merchant
Barding	Unit: Cataphract
Infantry Square	Unit: Pikeman Bonus Card: Free Court Soldier
Cohorts	Unit: Swordsman
Chain Drive	Unit: Polybolos Bonus Card: Free Court Merchant
Ballistics	Unit: Mangonel