Technology.mp2c

Quick Jump: List of Technologies
= Technologies =
During the game all nations will race to discover more powerful advances (technologies.) A few advances provide immediate benefits, such as making new actions available to your units. Many introduce new units or buildings you can construct. Most are gateways to further technology. Beware that some advances also make things obsolete. While obsolete units merely become impossible to make, obsolete buildings are immediately sold, and obsolete wonders lose their effect.
By default, each player starts with no technology (this could be changed with the techlevel server option). You direct your research toward one advance at a time. Research progress is measured in research points which are called "bulbs." You can generate your own bulbs through trade and scientists, or receive them from others through blueprints. Unlike gold, which can be transferred or spent on anything, bulbs are research knowledge tied toward acquiring a specific technology. Each technology has a specific bulb cost. The more nations who already know a technology, the more the bulb cost will be reduced, due to a phenomenon called techleak. (See /help techleak). 
Each "bulb" or research point you generate is permanently credited toward the technology that was your current research when the bulb was generated. The technology becomes "discovered" and usable when you acquire bulbs equivalent to 100% of its bulb cost. If you switch technology goals, you will start learning the new technology from zero again. You will keep a research bulb credit toward your previous research, which will be there when you come back to your previous research.
Instead of selecting each new advance manually, you can establish a future goal that is several technologies away, and your scientists will work through all the prerequisite advances automatically. (In Freeciv-web, you can do this by 1) clicking a far off tech for which you do not yet have the pre-requisites, 2) middle click, 3) alt-right click.) You can open the Tech tab at the top of the screen to view science progress and set new tech goals. The online hover-help system displays information for every item and technology in the game, allowing you to explore technologies and the capabilities they unlock.
= Blueprints =
The only way to learn a technology is to research it. But there are several ways to more easily gain advances from other civilizations. You might discover blueprints for enemy technology when you capture a city. You can steal blueprints with Diplomats and Spies. Another player may give you technology blueprints in the terms of a pact. 
In older game versions, events such as city conquest and technology theft immediately awarded you a technology. This is no longer the case. 
Tech theft through espionage, city conquest, and tech trade give you blueprints. Blueprints are a non-transferable bulb credit toward a specific technology advance. The bulb credit reduces the remaining bulb cost for researching the advance. A blueprint fills a technology's bulb account up to but not past the blueprint's value toward that technology. Bulbs are not like "wallet dollars" you can transfer from one research project to another. It is a waste of research effort to acquire partial bulbs into a tech for which you later get blueprints, since the bulb account for a blueprinted tech will not exceed the bulb value of the blueprint. 
Use /help blueprints and /show blueprints to learn about the server setting and its configuration in a particular game
= Research Goals =
If you have no future goal and discover a tech, your current research target will go to an unselected state. You will probably have remaining bulbs. When the turn ends, if your current research is still unselected and you have no future goal, then a current research is randomly set for you. 
Whenever a new current research is set, all remaining bulbs are permanently assigned to that current research instantly, and then on to the next tech toward your future goal, if there is one.
Blueprints can be obtained by diplomatic treaty, theft, or conquest at any point in time, especially in multiplayer games. It is favorable to leave current research unselected and set new future goals turn-by-turn, so you can weigh your chances of acquiring blueprints before spending your remaining bulbs on techs for which blueprints might give you the bulbs for free. 
👉🏻 TIP - If you are unsure how many bulbs are remaining after your last discovery, middle-click an already-researched technology to fetch this information from server. 
= The Space Race =
If the server option is enabled, the game may be won peacefully by building a spacecraft and becoming the first civilization to reach Alpha Centauri. To enter the "space race" you must complete the Apollo Program. With the necessary technologies, this allows you to begin building spacecraft parts:
{| cellpadding="4" width="100%"	
	Space Module
cost:2000 upkeep:0
requires:Superconductors
The skeleton of your spacecraft consists of structural components, each of which can hold in place either a component or module. Components provide fuel and propulsion systems, and decrease the amount of time your craft will require to reach Alpha Centauri; you can install up to sixteen, though they must be installed in pairs. Modules themselves come in three flavors: a habitation module provides living space for ten thousand colonists; a life support module can keep ten thousand colonists alive; and a solar panel provides the power required by any two other modules.
Use the spaceship window to observe your progress as you build your spacecraft. You may manufacture spacecraft elements anywhere with a factory; they will automatically be assembled in your capital city. As you add components you improve the craft's probability of success and travel time; you may launch as soon as you find these satisfactory. If several civilizations are building spacecraft, they are faced with the decision of whether to launch quickly and start their craft on its way, or continue building in the hopes of launching a faster spacecraft later, or one with a higher probability of success.
During construction and after launch, the spaceship is considered a building of your capital city. It will be lost if your capital is taken or destroyed.
= List of Technologies =
Technology
* requirements	Effects	Allows (Units, Buildings, Techs)Obsoletes (Units, Buildings)
Advanced Flight
* Radio
* Machine Tools	 	
* Medium Bomber
* Carrier
* Combined Arms (with Mobile Warfare)
* Radar (with Electronics)
Alphabet 	
* Disables Well-Diggers	
* Trireme
* Code of Hammurabi
*Code of Laws
*Map Making
*Mathematics (with Masonry)
*Writing
Alphabet 	
* Disables Well-Diggers	
* Boat
Amphibious Warfare
* Navigation
* Tactics	 	
* Marines
* Port Facility
Astronomy
* Mysticism
* Mathematics	 	
* War Galley
* Copernicus' Observatory
*Navigation (with Seafaring)
*Theory of Gravity (with University)
Atomic Theory
* Theory of Gravity
* Physics	 	
*Nuclear Fission (with Mass Production)
Automobile
* Combustion
* Steel	
*Increases population pollution 25%	
* Submarine
* Super Highways
*Mass Production (with The Corporation)
*Mobile Warfare (with Tactics)
Automobile
* Combustion
* Steel	
*Increases population pollution 25%	
* Colossus
* Leonardo's Workshop
Avionics
* Rocketry
* Computers	 	
* Jet Fighter
* Ground Strike Fighter
*Stealth (with Superconductors)
Avionics
* Rocketry
* Computers	 	
* Fighter
* Escort Fighter
* Dive Bomber
Banking
* Trade
* The Republic	
*Prevents Philosophy from awarding bonus tech
*Converts upkeep on Infantry from 1 shield to 1 gold
*Globally expires extra gold bonus for new trade routes from capitals.	
* Bank
* Medici Bank
*Democracy (with Invention)
*Economics (with University)
*Industrialization (with Railroad)
Bridge Building
* Iron Working
* Construction	
*Allows roads on rivers.
*Upgrades all roads in cities to Bridges	
*Railroad (with Steam Engine)
Bronze Working 	 	
* Phalanx
* Colossus
* Agōgē of Sparta
*Currency
*Iron Working (with Warrior Code)
Ceremonial Burial	 	
* Temple
* Mausoleum of Mausolos
*Monarchy (with Code of Laws)
*Mysticism
*Polytheism (with Horseback Riding)
Ceremonial Burial	 	
* Totem Pole
Chemistry
* University
* Medicine	 	
*Balloon
*Explosives (with Gunpowder)
*Refining (with Steel)
Chivalry
* Feudalism
* Horseback Riding	 	
* Knights
*Leadership (with Gunpowder)
Chivalry
* Feudalism
* Horseback Riding	 	
* Horsemen
* Chariot
Code of Laws
* Alphabet	 	
* Courthouse
*Literacy (with Writing)
*Monarchy (with Ceremonial Burial)
*The Republic (with Literacy)
*Trade (with Currency)
Combined Arms
* Mobile Warfare
* Advanced Flight	 	
* Paratroopers
* Helicopter
* Transport Helicopter
Combustion
* Refining
* Explosives	
*+1 move for Trains	
* Zeppelin
*Automobile (with Steel)
*Flight (with Theory of Gravity)
Combustion
* Refining
* Explosives	
*+1 move for Trains	
* Balloon
Communism
* Philosophy
* Industrialization	
*Allows government Communism.
*pre-req for spawning Partisans	
*Proletarians
* Police Station
* United Nations
*Espionage (with Democracy)
*Guerilla Warfare (with Tactics)
Communism
* Philosophy
* Industrialization	
*Allows government Communism.
*pre-req for spawning Partisans	
Computers
* Mass Production
* Miniaturization	 	
* Research Lab
* The Internet
*Robotics (with Mobile Warfare)
*Space Flight (with Rocketry)
Computers
* Mass Production
* Miniaturization	 	
* Temple of Artemis
Conscription
* Democracy
* Metallurgy	
*Allows cities to produce multiple infantry units per turn if the city has the required buildings and output
*Allows upgrading all foot units to Musketeers for free.	
* Riflemen
* Zealots (Theocracy only)
*Tactics (with Leadership)
Conscription
* Democracy
* Metallurgy	
*Allows cities to produce multiple infantry units per turn if the city has the required buildings and output
*Allows upgrading all foot units to Musketeers for free.	
* Musketeers
* Falconeers
Construction
* Masonry
* Currency	
*Allows building Fortresses
*Allows mining deserts	
* Siege Ram
* Aqueduct
* Amphitheater
* City Walls
* Great Wall
*Bridge Building (with Iron Working)
*Engineering (with The Wheel)
Currency
* Bronze Working	 	
* Goods
* Marketplace
* The Olympics
*Construction (with Masonry)
*Trade (with Code of Laws)
Democracy
* Banking
* Invention	
*Allows Democracy government	
* Statue of Liberty
*Conscription (with Metallurgy)
*Espionage (with Communism)
*Recycling (with Mass Production)
Democracy
* Banking
* Invention	
*Allows Democracy government	
* Code of Hammurabi
Economics
* Banking
* University	 	
* Stock Exchange
* A.Smith's Trading Co.
*The Corporation (with Industrialization)
Electricity
* Metallurgy
* Magnetism	
*Increases Amphitheater effect +1
*+1 move point for Trains
*Reveals all tiles within one's borders	
* Destroyer
*Tesla's Laboratory
*Electronics (with The Corporation)
*Refrigeration (with Sanitation)
*Steel (with Industrialization)
Electricity
* Metallurgy
* Magnetism	
*Increases Amphitheater effect +1
*+1 move point for Trains
*Reveals all tiles within one's borders	
* Ironclad
Electronics
* The Corporation
* Electricity	 	
* Hydro Plant
* Hoover Dam
*Miniaturization (with Machine Tools)
*Nuclear Power (with Nuclear Fission)
*Radar (with Advanced Flight)
Engineering
* The Wheel
* Construction	
*Allows building Canals
*Allows building Naval Base	
* Ram Ship
* King Richard's Crusade
* Roman Colosseum
*Invention (with Literacy)
*Sanitation (with Medicine)
Environmentalism
* Recycling
* Space Flight	
*Reduces population pollution by 50%	
* Solar Plant
* Wind Plant
Espionage
* Communism
* Democracy	 	
* Spy
Espionage
* Communism
* Democracy	 	
* Diplomat
Explosives
* Gunpowder
* Chemistry	 	
* Engineers
*Combustion (with Refining)
Explosives
* Gunpowder
* Chemistry	 	
* Workers
Feudalism
* Warrior Code
* Monarchy	
*Allows building Castles (with Construction)	
* Pikemen
* Sun Tzu's War Academy
*Chivalry (with Horseback Riding)
*Theology (with Monotheism)
Feudalism
* Warrior Code
* Monarchy	
*Allows building Castles (with Construction)	
* Warriors
* Phalanx
Flight
* Combustion
* Theory of Gravity	 	
* Airplane
* Fighter
* Anti-Aircraft Artillery
*Radio
Fusion Power
* Nuclear Power
* Superconductors	 	
* Hydrogen Bomb
* Doomsday Bomb
* Tactical Nuke
* Enrichment Facility
* Fusion Reactor
Fusion Power
* Nuclear Power
* Superconductors	 	
* Medici Bank
Guerilla Warfare
* Communism
* Tactics	
*Globally sets ability to spawn Partisans	
* Partisan
*Labor Union (with Mass Production)
Guerilla Warfare
* Communism
* Tactics	
*Globally sets ability to spawn Partisans	
* Explorer
Gunpowder
* Invention
* Iron Working	
*pre-req for spawning Partisans
*prevents building new Castles	
* Musketeers
* Barracks II
* Coastal Defense
*Explosives (with Chemistry)
*Leadership (with Chivalry)
*Metallurgy (with University)
Gunpowder
* Invention
* Iron Working	
*pre-req for spawning Partisans
*prevents building new Castles	
* Archers
* Legion
* Pikemen
* Barracks
* Agōgē of Sparta
Horseback Riding 	
Travelers spread news to the world if discovered before Turn 15 (2600 BC)	
* Horsemen
* Genghis Khan's Equestrian School
*Chivalry (with Feudalism)
*Polytheism (with Ceremonial Burial)
*The Wheel
Industrialization
* Railroad
* Banking	
*Increases population pollution 25%	
* Transport
* Cargo Ship
* Factory
* Women's Suffrage
*Communism (with Philosophy)
*Steel (with Electricity)
*The Corporation (with Economics)
Industrialization
* Railroad
* Banking	
*Increases population pollution 25%	
* Galleon
Invention
* Engineering
* Literacy	
*Increases units' vision in:
**Fortress, Naval Base, Castle
*Prevents Philosophy from awarding bonus tech	
* Leonardo's Workshop
*Democracy (with Banking)
*Gunpowder (with Iron Working)
*Steam Engine (with Physics)
Iron Working
* Bronze Working
* Warrior Code	 	
* Legion
*Bridge Building (with Construction)
*Gunpowder (with Invention)
*Magnetism (with Physics)
Labor Union
* Mass Production
* Guerilla Warfare	
*Allows upgrading Musketeers to Riflemen for free.	
* Mech. Inf.
Laser
* Mass Production
* Nuclear Power	 	
* Satellite (with Apollo Program
* SDI Defense
*Superconductors (with Nuclear Power)
Leadership
* Chivalry
* Gunpowder	 	
* Dragoons
*Tactics (with Conscription)
Leadership
* Chivalry
* Gunpowder	 	
* Knights
* Crusaders
Literacy
* Writing
* Code of Laws	 	
* Supreme Court
*Invention (with Engineering)
*Philosophy (with Mysticism)
*Physics (with Navigation)
*The Republic (with Code of Laws)
Machine Tools
* Steel
* Tactics	
*Globally obsoletes Great Wall when discovered	
* Artillery
*Advanced Flight (with Radio)
*Miniaturization (with Electronics)
Machine Tools
* Steel
* Tactics	
*Globally obsoletes Great Wall when discovered	
* Cannon
* Great Wall
Magnetism
* Navigation
* Invention	 	
* Galleon
* Frigate
*Electricity (with Metallurgy)
Magnetism
* Navigation
* Invention	 	
* Caravel
Map Making
* Alphabet	 	
* Longboat
* Explorer
* Lighthouse
*Seafaring (with Pottery)
Masonry 	
*Allows building Forts	
* Fortifications
* Ziggurat
*Construction (with Currency)
*Mathematics (with Alphabet)
Mass Production
* Automobile
* The Corporation	
*Increases population pollution 25%	
* Freight
* Mass Transit
*Computers (with Miniaturization)
*Labor Union (with Guerilla Warfare)
*Laser (with Nuclear Power)
*Nuclear Fission (with Atomic Theory)
*Recycling
Mass Production
* Automobile
* The Corporation	
*Increases population pollution 25%	
* Goods
Mathematics
* Alphabet
* Masonry	 	
* Catapult
* Pyramids
*Astronomy (with Mysticism)
*University (with Philosophy)
Medicine
* Philosophy
* Trade	 	
* Shakespeare's Theatre
*Chemistry (with University)
*Genetic Engineering (with The Corporation)
*Sanitation (with Engineering)
Metallurgy
* Gunpowder
* University	
* City Walls cost 75	
* Cannon
* Gibraltar Fortress 
*Conscription (with Democracy)
*Electricity (with Magnetism)
Metallurgy
* Gunpowder
* University	
* City Walls cost 75	
* Catapult
* Siege Ram
Microbiology
* Medicine
* The Corporation	 	
* Pasteur Institute
Miniaturization
* Machine Tools
* Electronics	 	
* Offshore Platform
*Computers (with Mass Production)
*Rocketry (with Radar)
Miniaturization
* Machine Tools
* Electronics	 	
* Lighthouse
Mobile Warfare
* Automobile
* Tactics	 	
* Armor
* Barracks III
*Combined Arms (with Advanced Flight)
*Robotics (with Computers)
Mobile Warfare
* Automobile
* Tactics	 	
* Cavalry
* Barracks II
* Sun Tzu's War Academy
* Genghis Khan's Equestrian School
Monarchy
* Ceremonial Burial
* Code of Laws	
*Allows Monarchy government	
* Peasants (with Magna Carta)
* Magna Carta
*Feudalism (with Warrior Code)
Monarchy
* Ceremonial Burial
* Code of Laws	
*Allows Monarchy government	
* Chand Baori
* Ziggurat
Monotheism
* Philosophy
* Polytheism	 	
* Crusaders
* Cathedral
* Michelangelo's Chapel
*Theology (with Feudalism)
Mysticism
* Ceremonial Burial	
*Doubles the effect of Temples	
* Ecclesiastical Palace
* Temple of Artemis 
* Oracle
*Astronomy (with Mathematics)
*Philosophy (with Literacy)
Nationalism
* Communism	
*Allows Nationalism government.	
* Migrants
Navigation
* Seafaring
* Astronomy	 	
* Caravel
* Magellan's Expedition
*Amphibious Warfare (with Tactics)
*Physics (with Literacy)
Navigation
* Seafaring
* Astronomy	 	
* Longboat
* Galley
* War Galley
* Ram Ship
Nuclear Fission
* Mass Production
* Atomic Theory	 	
* Atom Bomb
* Manhattan Project
*Nuclear Power (with Electronics)
Nuclear Power
* Nuclear Fission
* Electronics	
*Gives sea units +2 moves	
* Nuclear Plant
*Fusion Power (with Superconductors)
*Laser (with Mass Production)
*Superconductors (with Laser)
Philosophy
* Mysticism
* Literacy	Gives a free tech before T85 (1600AD)
if the nation does not already have
Banking, Invention, or Physics.	
* Pax Dei
*Communism (with Industrialization)
*Medicine (with Trade)
*Monotheism (with Polytheism)
*University (with Mathematics)
Philosophy
* Mysticism
* Literacy	Gives a free tech before T85 (1600AD)
if the nation does not already have
Banking, Invention, or Physics.	
* The Sphinx 
Physics
* Literacy
* Navigation	
*Increases unit vision to full 2x
*Prevents Philosophy from awarding bonus tech	
*Atomic Theory (with Theory of Gravity)
*Magnetism (with Iron Working)
*Steam Engine (with Invention)
Plastics
* Robotics
* Space Flight	
*Increases population pollution 25%	
* Armor II
* Space Component
Polytheism
* Horseback Riding
* Ceremonial Burial	 	
* Statue of Zeus
* Elephants
*Monotheism
Pottery 	
*Allows building Quays
*Disables Well-Diggers	
* Workers
* Granary
* Hanging Gardens
*Seafaring (with Map Making)
Radar
* Advanced Flight
* Electronics	
*Allows building Radar installations on Airbases.	
* Heavy Bomber
* AWACS
* Radar Tower
*Rocketry (with Miniaturization)
Radio
* Flight 	
*Allows building Airbase
*Allows building Buoy	
* Escort Fighter
* Dive Bomber
* Airport
*Advanced Flight (with Machine Tools)
Radio
* Flight 	
*Allows building Airbase
*Allows building Buoy	
* Mausoleum of Mausolos 
Railroad
* Steam Engine
* Bridge Building	
*Allows upgrading Roads to Railroads
*Less first-time revenue for Trade Routes	
* Train
* Darwin's Voyage
*Industrialization (with Banking)
Railroad
* Steam Engine
* Bridge Building	
*Allows upgrading Roads to Railroads
*Less first-time revenue for Trade Routes	
* Appian Way
Recycling
* Mass Production
* Democracy	
*Reduces unit upgrade gold costs by 20%	
* Recycling Center
*Environmentalism (with Space Flight)
Refining
* Chemistry
* Steel	
*Allows Oil Wells on Glaciers	
* Battleship
* Coal Plant
*Combustion (with Explosives)
*Plastics (with Space Flight)
Refrigeration
* Sanitation
* Electricity	
*Allows upgrading Irrigation to Farmland	
* Supermarket
Robotics
* Mobile Warfare
* Computers	 	
* Howitzer
* Mfg. Plant
*Plastics (with Space Flight )
Robotics
* Mobile Warfare
* Computers	 	
* Artillery
* King Richard's Crusade
Rocketry
* Radar
* Miniaturization	 	
*File:U.missile_cruiserMissile Destroyer
* AEGIS Cruiser
*  Srategic Bomber
* Cruise Missile
* SAM Battery
*Space Flight (with Computers)
*Avionics (with Computers)
Rocketry
* Radar
* Miniaturization	 	
* Cruiser
* Destroyer
Sanitation
* Engineering
* Medicine	 	
* Sewer System
*Refrigeration (with Electricity)
Seafaring
* Pottery
* Map Making	 	
*Galley
* Harbor
*Navigation (with Astronomy)
Seafaring
* Pottery
* Map Making	 	
* Trireme
Space Flight
* Computers
* Rocketry	
*Increases unit vision
*Increases city radius vision	
* Jet Bomber
* Mobile SAM
* Nuclear
* Space Structural
* Apollo Program
*Environmentalism (with Recycling)
*Plastics (with Robotics)
*Stealth (with Superconductors)
Space Flight
* Computers
* Rocketry	
*Increases unit vision
*Increases city radius vision	
* Strategic Bomber
* Heavy Bomber
* Medium Bomber
Stealth
* Superconductors
* Space Flight	 	
* Spy Plane
* Stealth Fighter
* Stealth Bomber
Stealth
* Superconductors
* Space Flight	 	
* AWACS
Steam Engine
* Physics
* University	
*Ends Colossus discount on Commerce units.	
* Ironclad
* Eiffel Tower
*Railroad (with Bridge Building)
Steam Engine
* Physics
* University	
*Ends Colossus discount on Commerce units.	
* Frigate
* Hanging Gardens
Steel
* Electricity
* Industrialization	
*Allows building Sea Bridge
*Allows building Bunker	
* Cruiser
*Automobile (with Combustion)
*Machine Tools (with Tactics)
*Refining (with Chemistry)
Superconductors
* Nuclear Power
* Laser	
*Allows building MagLev super-rails	
* Space Module
*Fusion Power (with Nuclear Power)
*Stealth (with Advanced Flight)
Tactics
* Conscription
* Leadership	 	
* Alpine Troops
* Cavalry
*Amphibious Warfare (with Navigation)
*Guerilla Warfare (with Communism)
*Machine Tools (with Steel)
*Mobile Warfare (with Automobile)
Tactics
* Conscription
* Leadership	 	
* Dragoons
* Statue of Zeus 
The Corporation
* Economics
* Industrialization	
*+25% Coinage rate for Stock Exchanges. (2.25 gold per shield)	
* Truck
*Electronics (with Electricity)
*Genetic Engineering (with Medicine)
*Mass Production (with Automobile)
The Corporation
* Economics
* Industrialization	
*+25% Coinage rate for Stock Exchanges. (2.25 gold per shield)	
* Caravan
* Wagon
The Republic
* Code of Laws
* Literacy	
*Allows Republic government	
*Banking (with Trade)
The Wheel
* Horseback Riding	 	
* Wagon
* Chariot
*Engineering (with Construction)
Theocracy
* Theology	 	
*Pilgrims
*Falconeers
Theocracy
* Theology	 	
* Pax Dei
Theology
* Feudalism
* Monotheism	
*Improves Cathedral effect by +1
*Improves Michelangelo effect by +1	
* J.S. Bach's Cathedral
Theology
* Feudalism
* Monotheism	
*Improves Cathedral effect by +1
*Improves Michelangelo effect by +1	
* Oracle
Theory of Gravity
* Astronomy
* University	 	
* Isaac Newton's College
*Atomic Theory (with Physics)
*Flight (with Combustion)
Trade
* Currency
* Code of Laws	 	
* Caravan
* Marco Polo's Embassy
*Banking (with The Republic)
*Medicine (with Philosophy)
University
* Mathematics
* Philosophy	 	
* University
*Chemistry (with Medicine)
*Economics (with Banking)
*Metallurgy (with Gunpowder)
*Theory of Gravity (with Astronomy)
Warrior Code 	
*Allows building Hideouts	
* Archers
* Barracks
*Feudalism (with Monarchy)
*Iron Working (with Bronze Working)
Writing
* Alphabet	 	
* Diplomat
* Library
*Literacy (with Code of Laws)