Tech Tree
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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 (80 Science)
- Ironworking
- Stonecutting
- Trapping
- Divination
- Administration
Tier 2 (120 Science)
- Labor Force
- Husbandry
- Drama
- Polis
- Military Drill
- Aristocracy
- Sovereignty
- Rhetoric
Tier 3 (200 Science)
- Navigation
- Phalanx
- Spoked Wheel
- Ramparts
- Forestry
- Battleline
- Monasticism
- Composite Bow
- Metaphysics
Tier 4 (400 Science)
- Citizenship
- Drawbridge
- Land Consolidation
- Steel
- Doctrine
- Siegecraft
Tier 5 (800 Science)
- Coinage
- Scholarship
- Torsion
- Stirrups
- Architecture
- Manor
- Machinery
- Mounted Archery
- Cartography
Tier 6 (1600 Science)
- Hydraulics
- Lateen Sail
- Warrior Code
- Bodkin Arrow
- Aesthetics
- Unit Tactics
- Strategy
Tier 7 (3200 Science)
- Vaulting
- Jurisprudence
- Barding
- Sarissa
- Fiscal Policy
- Windlass
Tier 8 (6400 Science)
- Economic Reform
- Military Reform
- Political Reform