Technology Tree - Empire Earth


Prehistoric Age (I)
-------------------

TEMPLE
Mysticism (+60% Prophet HP)
Sandals (+1 Prophet Speed)


Stone Age (II)
--------------

CAPITOL
Hafted Tools (+15% Stone Gathering)

TEMPLE
Shamanism (+1 Prophet Range)
Ancestor Worship (+1 Temple Range)
Ceremonial Burial (+100% Priest HP)


Copper Age (III)
----------------

CAPITOL
Fine-Edged Tools (+15% Hunting/Foraging)
Hand Axe (+15% Wood Gathering)
Upgrade -> Copper Age Towers

GRANARY
Irrigation (+15% Farming)

HOSPITAL
Herbal Medicines (+70% Citizen/Dog HP, +3 Citizen Attack)

TEMPLE
Mythology (+1 Priest Speed)
Polytheism (+1 Priest Range)

UNIVERSITY
Oil Lamp (+1 Building LOS)


Bronze Age (IV)
---------------

CAPITOL
Metal Casting (+15% Gold Gathering)
Hardened Chisel (+15% Iron Gathering)
Upgrade -> Bronze Age Walls/Towers

HOSPITAL
Hippocratic Oath (+Hospital Rate and Range)

TEMPLE
Oracle (+1 Prophet Speed)
Monotheism (+1 Temple Range)

UNIVERSITY
Pulley (+50% Building HP)
Philosophy (+1 University Range)


Dark Age (V)
------------

CAPITOL
Falconry (+15% Hunting/Foraging)
Iron Saw (+15% Wood Gathering)

HOSPITAL
Comparative Anatomy (+42% Citizen/Dog HP and +2 Citizen Attack)
Pharmacy (+1 Citizen Speed)
Sanitation (+5 Pop Cap)

TEMPLE
Sainthood (+1 Prophet Range)
Prophecy (+40% Prophet HP)
Excommunication (+1 Priest Range)

UNIVERSITY
Commercial Law (-50% Tribute Cost)
Cofferdam (+100% Dock Repair Rate)


Middle Age (VI)
---------------

CAPITOL
Amalgamation (+15% Gold Gathering)
Shaft Mining (+15% Iron Gathering)
Upgrade -> Medieval Walls/Towers

GRANARY
Wheeled Plow (+15% Farming)

TEMPLE
Crusades (+1 Temple Range)
Indulgences (+1 Priest Speed)
Inquisition (+50% Priest HP)

UNIVERSITY
Bulls-Eye Lantern (+1 Building LOS)
Law School (+1 University Range)


Renaissance (VII)
-----------------

CAPITOL
Windlass (+15% Stone Gathering)

HOSPITAL
Human Anatomy (+30% Citizen/Dog HP and +2 Citizen Attack)
Quarantine (+Hospital Rate and Range)

TEMPLE
Tarot (+1 Prophet Speed)
Astrology (+1 Prophet Range)
Printing Press (Priest Can Convert Priests)


Imperial Age (VIII)
---------------

CAPITOL
Land Conservation (+15% Hunting/Foraging)
Forestry (+15% Wood Gathering)
Upgrade -> Imperial Age Walls/Towers

HOSPITAL
Orthopedics (+1 Citizen Speed)
Chemical Drugs (+5 Pop Cap)

TEMPLE
Occultism (+25% Prophet HP)
Reformation (+1 Priest Range)
Missionaries (Priests Can Convert Buildings)

UNIVERSITY
Strengthened Concrete (+33% Building HP)
Scientific Method (+1 University Range)
Dry Dock (+150% Dock Repair Rate)


Industrial Age (IX)
-------------------

CAPITOL
Steam Engine (+15% Gold Gathering)
Mining Explosives (+15% Iron Gathering)

GRANARY
Enclosure (+15% Farming)

HOSPITAL
Pasteurization (+20% Citizen/Dog HP and +3 Citizen Attack)
Anesthesia (+Hospital Rate and Range)

TEMPLE
Sunday School (+1 Temple Range)
Religious Tolerance (+25% Priest HP)

UNIVERSITY
Gas Lamp (+1 Building LOS)


Atomic Age - WWI (X)
--------------------

CAPITOL
Hammer Drilling Rigs (+15% Stone Gathering)
Upgrade -> Concrete Walls/Towers

HOSPITAL
Vitamins (+1 Citizen Speed)

TEMPLE
Radio Services (+1 Priest Speed)

UNIVERSITY
Civil Liberties (+1 University Range)


Atomic Age - WWII (XI)
----------------------

CAPITOL
Environmental Law (+15% Hunting/Foraging)
Mechanized Logging (+15% Wood Gathering)

HOSPITAL
DNA Research (+30% Citizen/Dog HP and +3 Citizen Attack)
Vaccinations (+5 Pop Cap)

TEMPLE
Televangelism (+1 Priest Range)

UNIVERSITY
Scuba Repairs (+80% Dock/Naval Yard Repair Rate)


Atomic Age - Modern (XII)
-------------------------

CAPITOL
Hydraulic Mining (+15% Gold Gathering)
Basic Oxygen Furnace (+15% Iron Gathering)

GRANARY
Pesticides (+15% Farming)

HOSPITAL
MRI (+Hospital Rate and Range)

TEMPLE
Religious Resurgance (+20% Priest HP)

UNIVERSITY
Building Codes (+25% Building HP)


Digital Age (XIII)
------------------

CAPITOL
Self-Sufficiency (+15% Hunting/Foraging) note: not in Expansion
Upgrade -> Laser Walls/Towers

HOSPITAL
Genetic Engineering (+20% Citizen/Dog HP and +3 Citizen Attack)

TEMPLE
Virtual Services (+1 Priest Speed)

UNIVERSITY
Digital Library (+1 University Range)


Nano Age (XIV)
--------------

CAPITOL
Atom Manipulation (+15% Gold Gathering)
Core Mining (+15% Iron Gathering)

GRANARY
Hydroponics (+15% Farming)

HOSPITAL
Cybernetics (+1 Citizen Speed)
Anti-Aging Pill (+5 Pop Cap)

TEMPLE
Mind Control (+20% Priest Recharge Rate)


Space Age (XV)
--------------

CAPITOL
Upgrade -> Space Walls/Towers

GRANARY
Robotic Farm (No Citizens needed for farming)

HOSPITAL
Damage Control (Space units heal selves)

TEMPLE
Faith Healing (Increases Priest Hit Points)
Quantum Theology (Increases Prophet Recharge Rate)

UNIVERSITY
Zero G Engineers (+15% Space Dock Repair Rate)