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 100 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 Improvement: Odeon Theology: Gnosticism Bonus Card: Free Settler
Polis	Unlocks: Ask to declare War Improvement: Hamlet Project: Walls
Military Drill	Unlocks: 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: Scout Automation Law Category: Colonies - Serfdom Unit: Bireme Bonus Card: Free Bireme
Phalanx	Unit: Spearman Bonus Card: Orders Boost
Spoked Wheel	Council: Chancellor Unit: Chariot Bonus Card: Free Chariot
Forestry	Improvement: Lumbermill Theology: Enlightenment Bonus Card: Free Court Scholar
Steel	Unit: Axeman Bonus Card: Training Boost
Sovereignty	Law Category: Tyranny - Constitution Bonus Card: Civics Boost
Metaphysics	Unlocks: Convert to State Religion, High Synod Project: Archive Theology: Redemption

Tier 4 technologies

Tier 4 technologies cost 400 Science.

Technology	Unlocks
Coinage	Unlocks: Worker Automation, Pacify City Improvement: Market Bonus Card: Money Boost
Citizenship	Improvement: Courthouse Law Category: Divine Rule - Legal Code Bonus Card: Free Court Minister
Portcullis	Council: Spymaster Project: Moat Bonus Card: Free Maceman
Land Consolidation	Improvement: Grove Unit: Camel Archer, War Elephant Bonus Card: Free Camel Archer, Free War Elephant
Composite Bow	Improvement: Range Unit: Archer Bonus Card: Free Archer
Monasticism	Improvement: Monastery Law Category: Monotheism - Polytheism
Machinery	Unit: Onager Bonus Card: Free Onager

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 Bonus Card: Free Horseman, Free Horse Archer
Architecture	Improvement: Bath Law Category: Philosophy - Engineering Bonus Card: Free Siege Tower
Manor	Unit: Conscript Law Category: Professional Army - Volunteeers Bonus Card: Goods Boost
Battle Line	Unit: Maceman Bonus Card: Free Court Soldier
Doctrine	Improvement: Temple Law Category: Tolerance - Orthodoxy
Hydraulics	Improvement: Mill Unit: Ballista Bonus Card: Free Ballista
Cartography	Unlocks: Steal Research Improvement: Harbor Unit: Trieme Bonus Card: Free Trieme

Tier 6 technologies

Tier 6 technologies cost 1000 Science.

Technology	Unlocks
Lateen Sail	Unit: Dromon Law Category: Autarky - Trade League Bonus Card: Free Dromon
Jurisprudence	Unlocks: Insurrection Law Category: Guilds - Elites Bonus Card: Free Court Minister
Martial Code	Project: Towers Law Category: Pilgrimage - Holy War
Vaulting	Improvement: Cathedral Law Category: Iconography - Calligraphy Bonus Card: Happiness Boost
Bodkin Arrow	Unit: Longbowman Bonus Card: Free Longbowman
Windlass	Unit: Crossbowman Bonus Card: Free 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