Techs (short for "technologies") are empire upgrades that cost science and provide various benefits and make additional techs and some laws and events available.
Tier 1 (100 Science)
| Technology |
Prerequisites |
Leads To |
Effects
|
| Ironworking |
None |
Husbandry, Labor Force, Steel (with Military Drill) |
Warrior
|
| Stonecutting |
None |
|
Fort, Quarry
|
| Trapping |
None |
|
Slinger, Camp
|
| Divination |
None |
Aristocracy |
Shrine
|
| Administration |
None |
Rhetoric, Free Worker |
Treasury, Granary
|
Tier 2 (150 Science)
| Technology |
Prerequisites |
Leads To |
Effects
|
| 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, Trapping |
|
|
| Military Drill |
Trapping |
Composite Bow, Steel (with Ironworking) |
Barracks, Rally Troops
|
| Aristocracy |
Divination |
Border Boost, Sovereignty (with Rhetoric), Monasticism |
Ambassador, Centralization / Vassalage
|
| Rhetoric |
Administration |
|
|
Border Boost - All Cities +6 Border Tiles
Food Boost - +200 Food
Tier 3 (250 Science)
| Technology |
Prerequisites |
Leads To |
Effects
|
| Navigation |
Labor Force |
|
|
| Phalanx |
Labor Force |
|
|
| Spoked Wheel |
Husbandry |
|
|
| Forestry |
Polis |
Land Consolidation, Free Court Scholar, Free Heavy Chariot, Free Light Chariot |
Lumbermill, Enlightenment
|
| Steel |
Military Drill, Ironworking |
|
|
| Sovereignty |
Aristocracy, Rhetoric |
|
|
| Metaphysics |
Rhetoric |
Cartography (with Navigation) |
Convert to State Religion, High Synod, Archive I, Redemption,
|
Tier 4 (400 Science)
| Technology |
Prerequisites |
Leads To |
Effects
|
| Coinage |
Navigation |
Money Boost, Lateen Sail (with Cartography) |
Market, Pacify City, Automate Workers
|
| Citizenship |
Phalanx |
Scholarship, Stirrups (with Spoked Wheel), Free Court Minister |
Courthouse, Divine Rule / Legal Code
|
| Portcullis |
Drama |
|
|
| 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
|
Tier 5 (600 Science)
| Technology |
Prerequisites |
Leads To |
Effects
|
| Scholarship |
Citizenship |
|
|
| Stirrups |
Citizenship, Spoked Wheel |
|
|
| Architecture |
Portcullis |
Vaulting, Free Siege Tower |
Bath, Philosophy / Engineering
|
| Manor |
Composite Bow, Land Consolidation |
Bodkin Arrow, Goods Boost, Free Turreted Elephant |
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, +400 Stone, +400 Lumber
Tier 6 (1000 Science)
| Technology |
Prerequisites |
Leads To |
Effects
|
| 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 |
|
|
| Bodkin Arrow |
Manor |
Infantry Square, Free Longbowman, Free Cimmerian Archer |
Longbowman
|
| Windlass |
Torsion |
|
|
Tier 7 (1500 Science)
| Technology |
Prerequisites |
Leads To |
Effects
|
| 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)
| Technology |
Prerequisites |
Leads To |
Effects
|
| 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
