Civilization Revolution/Technologies

Unlocking technologies gives the player access to new units, buildings, wonders, resources, government types, Great Persons and more technologies. They are obtained by accumulating enough Science and by possessing the required lower-level technologies.

Science

Science, like Gold, may be converted from Trade. Its sole purpose is to be put towards the discovery of new technologies.

Science production may be improved by:

• Building a Library (doubles science production in the city) or University (quadruples science production in the city)
• Building one of the following wonders:
  • Colossus of Rhodes (+50% Science production in the city)
  • Oxford University (Instantly grants a technology)
  • Great Library (Obtain any technology known by at least two other civilizations)
  • Apollo Program (Instantly learn all technologies)
• Settling a Great Scientist in a city (+50% Science in the city)
• Using a Great Scientist to immediately complete the current research goal
• Discovering the Lost City of Atlantis Mysterious Artifact (Provides 3x new technologies)
• Assuming a Democratic government (+50% Science production in all cities)

List of technologies

• "Tech-card" fields: The upper three fields of each "Tech-card" locate each technology in the overall technology tree, while the lower five fields indicate what items are made available as a result of discovering the technology.

• Technology tiers: A technology's tier is equal to one greater than its highest tier prerequisite technology. This provies a measure of how advanced or late-game a specific technology is. Numbers in brackets beside each prerequisite technology represent its tier.

• Overshadowed prerequisites: Technologies listed within curly brackets { } indicate an overshadowed prerequisite, i.e. its position as a prerequisite technology is largely redundant as another prerequisite technology would necessarily demand knowledge of the bracketed technology for the discovery of the former. To help illustrate this case, consider conducting research on Irrigation. This requires knowledge of both Masonry and Pottery. However, Masonry itself requires Pottery and hence should the player have researched Masonry, they must have researched Pottery was well.
  The exception to this case is when Technologies are obtained out of order through Village discovery, Technology trading, construction of certain Wonders, or the discovery of Mysterious Artifacts. In the case of Irrigation mentioned above, if the player say purchased the Masonry technology from another civilization, they may not conduct research on Irrigation until Pottery had also been discovered.

A

Advanced Flight
Type: Military	Prerequisites
Tier: 9	Flight (8), Industrialization (7)
Unit Bomber Building - Wonders - Other - First discoverer 1x free Bomber

Agriculture
Type: Scientific	Prerequisites
Tier: 1	-
Unit - Building - Wonders - Other - First discoverer -

Alphabet
Type: Scientific	Prerequisites
Tier: 1	-
Unit - Building Library Wonders Oracle of Delphi Other - First discoverer -

Atomic Theory
Type: Scientific	Prerequisites
Tier: 8	Electricity (7), {Invention} (5), University (5)
Unit - Building - Wonders Manhattan Project Other - First discoverer +2 Science production to all cities

The Automobile
Type: Military	Prerequisites
Tier: 8	Combustion (7), Steel (7)
Unit Artillery Building - Wonders - Other May now utilize Rubber special resource First discoverer 1x free Artillery

B

Banking
Type: Economic	Prerequisites
Tier: 5	Currency (4), {Code of Laws} (3), Literacy (3)
Unit - Building Bank Wonders - Other - First discoverer Receive +100 Gold instantly

Bronze Working
Type: Military	Prerequisites
Tier: 1	-
Unit Archer Building Barracks Wonders Colossus of Rhodes Other May now harvest Fish First discoverer 1x free Archer

C

Ceremonial Burial
Type: Cultural	Prerequisites
Tier: 2	Pottery (1)
Unit - Building Temple Wonders Great Pyramid Other May now harvest Incense First discoverer

Code of Laws
Type: Military	Prerequisites
Tier: 3	Writing (2), {Alphabet} (1)
Unit - Building Trading Post Wonders - Other May now harvest Cattle; may use a Republic government First discoverer 1x free Trading Post

Combustion
Type: Military	Prerequisites
Tier: 7	Gunpowder (6), Steam Power (6), Metallurgy (6)
Unit Tank Building Trading Post Wonders - Other May now harvest Oil First discoverer 1x free Tank

Communism
Type: Military	Prerequisites
Tier: 8	Industrialization (7), University (5)
Unit - Building - Wonders - Other May now use a Communism government First discoverer Factories cost 33% less

Construction
Type: Military	Prerequisites
Tier: 3	Masonry (2), Iron Working (2)
Unit - Building Workshop Wonders - Other May now harvest Oak First discoverer 1x free Workshop

The Corporation
Type: Military	Prerequisites
Tier: 8	Industrialization (7), {Banking} (5)
Unit - Building - Wonders Military-Industrial Complex Other - First discoverer +5 Gold production to all cities

Currency
Type: Economic	Prerequisites
Tier: 4	Bronze Working (1), Code of Laws (3)
Unit Caravan Building Market Wonders Trade Fair of Troyes Other May now harvest Gold First discoverer 1x free Market, 1x free Caravan

D

Democracy
Type: Military	Prerequisites
Tier: 4	Code of Laws (3), Literacy (3)
Unit Pikemen Building - Wonders Magna Carta Other Democracy First discoverer 1x free Pikemen

E

Electricity
Type: Scientific	Prerequisites
Tier: 7	Steam Power (6), {Engineering } (4), Metallurgy (6)
Unit Submarine Building - Wonders - Other - First discoverer 1x free Submarine

Electronics
Type: Scientific	Prerequisites
Tier: 9	The Corporation (8), Electricity (7)
Unit - Building - Wonders - Other - First discoverer +2 Trade production to all cities

Engineering
Type: Military	Prerequisites
Tier: 4	Construction (3), Mathematics (3)
Unit - Building Aqueduct Wonders - Other - First discoverer +2 Production to all cities

F

Feudalism
Type: Military	Prerequisites
Tier: 5	Monarchy (4), Horseback Riding (1)
Unit Knight Building - Wonders - Other May now harvest Game First discoverer 1x free Knight

Flight
Type: Military	Prerequisites
Tier: 8	Combustion (7), {Metallurgy} (6), {Invention} (5)
Unit Fighter Building - Wonders - Other - First discoverer 1x free Fighter

Future Technologies
Type: Military	Prerequisites
Tier: 12	Superconductor (11), {Advanced Flight} (9), Globalization (11)
Unit - Building - Wonders - Other First time researched: +1 Production to all Production-producing regions. Second time researched: +1 Food to all Food-producing regions. Third time researched: +1 Trade to all Trade-producing regions. Successive Future Technologies will repeat this cycle. First discoverer -

G

Globalization
Type: Military	Prerequisites
Tier: 11	Networking (10), Mass Media (9)
Unit - Building - Wonders - Other - First discoverer Receive +500 Gold instantly

Gunpowder
Type: Military	Prerequisites
Tier: 6	Invention (5), Feudalism (5)
Unit Rifleman Building - Wonders - Other May now harvest Sulfur First discoverer 1x free Riflemen

H

Horseback Riding
Type: Military	Prerequisites
Tier: 1	-
Unit Horsemen Building - Wonders - Other May now harvest Oxen First discoverer 1x free Horsemen

I

Industrialization
Type: Military	Prerequisites
Tier: 7	Steam Power (6), Banking (5)
Unit - Building Factory Wonders - Other - First discoverer +5 Gold production to all cities

Invention
Type: Military	Prerequisites
Tier: 5	Engineering (4), Literacy (3)
Unit - Building - Wonders Leonardo's Workshop Other - First discoverer 1x free Great Person

Iron Working
Type: Military	Prerequisites
Tier: 2	Bronze Working (1)
Unit Legion Building - Wonders - Other May now harvest Iron First discoverer 1x free Legion

Irrigation
Type: Cultural	Prerequisites
Tier: 3	Masonry (2), {Pottery} (1)
Unit - Building - Wonders - Other May now harvest Wheat First discoverer +1 Population to all cities

L

Literacy
Type: Scientific	Prerequisites
Tier: 3	Writing (2), {Alphabet} (1)
Unit - Building Courthouse Wonders - Other May now harvest Silk First discoverer +2 trade in all cities

M

Masonry
Type: Military	Prerequisites
Tier: 2	Pottery (1)
Unit - Building Walls Wonders Great Wall Other May now harvest Marble First discoverer 1x free Walls

Mass Media
Type: Cultural	Prerequisites
Tier: 9	The Corporation (8), Printing Press (6)
Unit - Building - Wonders Hollywood Other - First discoverer +1 Population to all cities

Mass Production
Type: Military	Prerequisites
Tier: 8	Railroad (7), Industrialization (7)
Unit Modern Infantry Building - Wonders - Other May now harvest Aluminium First discoverer 1x free Modern Infantry

Mathematics
Type: Military	Prerequisites
Tier: 3	Masonry (2), Writing (2)
Unit Catapult Building - Wonders - Other - First discoverer 1x free Catapult

Metallurgy
Type: Military	Prerequisites
Tier: 6	University (5), Engineering (4), Iron Working (2)
Unit Cannon Building - Wonders - Other - First discoverer 1x free Cannon

Monarchy
Type: Cultural	Prerequisites
Tier: 4	Code of Laws (3), {Writing} (2), Ceremonial Burial (1)
Unit - Building - Wonders Himeji Samurai Castle Other May now harvest Dye; May now use a Monarchy government First discoverer 1x free Great Person

N

Navigation
Type: Military	Prerequisites
Tier: 4	Mathematics (3), Writing (2)
Unit Galleon Building Harbour Wonders East India Company Other May now harvest Whale First discoverer 1x free Galleon

Networking
Type: Economic	Prerequisites
Tier: 10	Electronics (9), {The Corporation} (8)
Unit - Building - Wonders Internet Other - First discoverer Universities cost 50% less

Nuclear Power
Type: Scientific	Prerequisites
Tier: 9	Atomic Theory (8), Mass Production (8)
Unit - Building - Wonders - Other May now harvest Uranium First discoverer +2 Production in all cities

P

Pottery
Type: Cultural	Prerequisites
Tier: 1	-
Unit - Building Granary Wonders Hanging Gardens of Babylon Other May now harvest Wine First discoverer

Printing Press
Type: Cultural	Prerequisites
Tier: 6	University (5), Religion (5)
Unit - Building - Wonders - Other - First discoverer +1 Culture to all cities

R

Railroad
Type: Military	Prerequisites
Tier: 7	Steam Power (6)
Unit - Building Iron Mine Wonders - Other - First discoverer +2 Production to all cities

Religion
Type: Cultural	Prerequisites
Tier: 5	Monarchy (4), Ceremonial Burial (1)
Unit - Building Cathedral Wonders - Other May now use a Fundamentalism government First discoverer +1 Culture to all cities

S

Space Flight
Type: Cultural	Prerequisites
Tier: 10	Nuclear Power (9), Electronics (9), Advanced Flight (9)
Unit - Building Spaceship Components (Fuel, Propulsion, Life Support, Habitation) Wonders Apollo Program Other - First discoverer Reveal entire map

Steam Power
Type: Military	Prerequisites
Tier: 6	Invention (5), {Engineering} (4), Iron Working (2)
Unit Cruiser Building - Wonders - Other May now harvest Coal First discoverer 1x free Cruiser

Steel
Type: Military	Prerequisites
Tier: 7	Steam Power (6), Metallurgy (6)
Unit Battleship Building - Wonders - Other - First discoverer 1x free Battleship

Superconductor
Type: Military	Prerequisites
Tier: 11	Space Flight (10), {Mass Production} (8)
Unit - Building SDI Defense Wonders - Other - First discoverer 1x free SDI Defense

U

University
Type: Scientific	Prerequisites
Tier: 5	Democracy (4), {Literacy} (3), Mathematics (3)
Unit - Building University Wonders Oxford University Other - First discoverer +2 Science production to all cities

W

Writing
Type: Scientific	Prerequisites
Tier: 2	Alphabet (1)
Unit Spy Building - Wonders Great Library Other - First discoverer 1x free Spy