Technology

The Tech Tree in it's complete beta form

Technology is one of the driving forces behind civilization. Technological advances in agriculture and fishing caused cities to grow and thrive. Technological advances in weaponry and masonry allowed cities to drive off jealous barbarians seeking to steal their food and plunder their wealth. And technological advances in medicine and sanitation fought off the other great threat to civilization – disease.

Players acquire technology by accumulating "science," which represent the amount of science a civilization possesses. Every turn a civilization generates an amount of science that can be used for research. Each technology costs a certain amount of science to learn; the more science generated each turn the shorter the amount of time it takes to research each technology. Players can also obtain technology from some Tribal Villages. This is not guaranteed, but it's another good reason to search them out and claim them before anybody else does.

Most technologies have a "Eureka" objective / bonus. This bonus is a sort of Quest (such as "Meet another Civilization" or "Build a Quarry") which when completed, will award a research credit worth 50% of the science previously needed to unlock that tech. Players can get the research credit whether or not they are currently researching the technology in question.

Ancient Era

The Ancient Era Technologies
Technology	Cost	Era	Unlocks	Eureka Boost	Notes
Pottery	16	Ancient Era	Granary		Allows harvesting of Wheat and Rice.
Animal Husbandry	16	Ancient Era	Camp, Pasture		Allows harvesting of Cattle.
Mining	16	Ancient Era	Mine, Quarry		Allows clearing of Woods and harvesting of Copper.
Sailing	50	Ancient Era	Galley Fishing Boats	Found a city on the Coast.	Allows Builders to embark.
Astrology	33	Ancient Era	Stonehenge, Holy Site, Shrine	Find a Natural Wonder.
Irrigation	54	Ancient Era	Plantation, Hanging Gardens	Farm a Resource	Allows clearing of Marsh.
Writing	54	Ancient Era	Library, Campus	Meet another Civilization
Archery	54	Ancient Era	Archer	Kill a Unit with a Slinger
Masonry	80	Ancient Era	File:Icon Battering Ram.png Battering Ram, Pyramids, Ancient Walls	Build a Quarry	Allows harvesting Stone
Bronze Working	80	Ancient Era	Reveals Iron, Encampment, Barracks, Spearman	Kill 3 Barbarians	Allows clearing of Rainforests
Wheel	80	Ancient Era	Heavy Chariot, Water Mill	Mine a Resource

Classical Era

The Classical Era Technologies
Technology	Cost	Era	Unlocks	Eureka Boost	Notes
Celestial Navigation	120	Classical Era	Lighthouse, Great Lighthouse, Harbor	Improve 2 sea Resources	Allows Traders to embark, and the harvesting of Fish.
Currency	120	Classical Era	Commercial Hub, Market	Make a Trade Route
Horseback Riding	120	Classical Era	File:Icon Horseman.png Horseman, Stables	Build a Pasture
Iron Working	120	Classical Era	File:Icon Swordsman.png Swordsman	Build an Iron Mine
Shipbuilding	180	Classical Era	Quadrireme, Colossus	Own 2 Galleys	Allows all land Units to embark.
Mathematics	180	Classical Era	Petra	Build 3 different specialty Districts	+1 Movement for all naval Units.
Construction	180	Classical Era	Terracotta Army, File:Icon Siege Tower.png Siege Tower	Build a Water Mill
Engineering	180	Classical Era	Aqueduct, Catapult	Build Ancient Walls

Medieval Era

The Medieval Era Technologies
Technology	Cost	Era	Unlocks	Eureka Boost	Notes
Military Tactics	240	Medieval Era	Huey Teocalli, File:Icon Pikeman.png Pikeman, File:Icon Samurai.png Samurai	Kill a Unit with a Spearman
Apprenticeship	240	Medieval Era	Workshop, Industrial Zone	Build 3 Mines	+1 Production to the Mine Improvement
Stirrups	240	Medieval Era	File:Icon Knight.png Knight	Have the Feudalism Civic
Machinery	240	Medieval Era	File:Icon Crossbowman.png Crossbowman, Lumber Mill	Own 3 Archers
Education	310	Medieval Era	University, Hagia Sophia	Earn a Great Scientist
Military Engineering	310	Medieval Era	Armory, Military Engineer, Medieval Road	Build an Aqueduct	Routes upgrade to Medieval Road
Castles	310	Medieval Era	Alhambra, Medieval Walls	Have a Government with 6 Policy slots	Bonus Culture for Great Wall adjacency

Renaissance Era

The Renaissance Era Technologies
Technology	Cost	Era	Unlocks	Eureka Boost	Notes
Cartography	390	Renaissance Era	Caravel	Build 2 Harbors	+1 Gold from Fishing Boats. Naval units can enter Ocean, +1 move for Embarked Units.
File:Icon Mass Production.png Mass Production	390	Renaissance Era	Shipyard, Venetian Arsenal	Build a Lumber Mill
File:Icon Banking.png Banking	390	Renaissance Era	Bank, Great Zimbabwe	Have the Guilds Civic	+1 Gold from Quarry
File:Icon Gunpowder.png Gunpowder	390	Renaissance Era	Reveals Niter, File:Icon Musketman.png Musketman	Build an Armory
File:Icon Printing.png Printing	390	Renaissance Era	Forbidden City	Build 2 Universities	+1 Diplomatic visibility, double Tourism from Writing Works
File:Icon Square Rigging.png Square Rigging	480	Renaissance Era	File:Icon Frigate.png Frigate	Kill a Unit with a File:Icon Musketman.png Musketman
File:Icon Astronomy.png Astronomy	480	Renaissance Era	Potala Palace	Build a University adjacent to a Mountain.
File:Icon Metal Casting.png Metal Casting	480	Renaissance Era	File:Icon Bombard.png Bombard	Own 2 File:Icon Crossbowman.png Crossbowman
File:Icon Siege Tactics.png Siege Tactics	480	Renaissance Era	Renaissance Walls, Fort	Own 2 Bombards

Industrial Era

The Industrial Era Technologies
Technology	Cost	Era	Unlocks	Eureka Boost	Notes
Industrialization	580	Industrial Era	Factory, Ruhr Valley, Industrial Roads	Build 3 Workshops
Scientific Theory	580	Industrial Era	Oxford University	Have The Enlightenment Civic	Allows Research Agreement diplomatic action. +1 Food from the Plantation improvement.
File:Icon Ballistics.png Ballistics	580	Industrial Era	Field Cannon	Have 2 Forts in your territory
File:Icon Military Science.png Military Science	580	Industrial Era	Military Academy, Cavalry, Garde Imperiale	Kill a Unit with a Knight
File:Icon Steam Power.png Steam Power	700	Industrial Era	Reveals Coal, Ironclad, Railroad	Build 2 Shipyards	Routes upgrade to Railroad, +2 Movement for embarked units
File:Icon Sanitation.png Sanitation	700	Industrial Era	Medic, Sewer	Build 2 Neighborhoods	+1 Housing to Stepwell Tile Improvements
File:Icon Economics.png Economics	700	Industrial Era	Big Ben, Stock Exchange	Build 2 Banks
File:Icon Rifling.png Rifling	700	Industrial Era	Ranger	Build a Niter Mine

Modern Era

The Modern Era Technologies
Technology	Cost	Era	Unlocks	Eureka Boost	Notes
File:Icon Flight.png Flight	?	Modern Era	Biplane, Airfield, File:Icon Airport.png Aerodrome, Paratrooper, Airport	Build an Industrial Era or later Wonder.
File:Icon Replaceable Parts.png Replaceable Parts	?	Modern Era	Infantry	Own 3 Musketmen
File:Icon Steel.png Steel	?	Modern Era	Eiffel Tower, Artillery, Destroyer	Build a Coal Mine
File:Icon Electricity.png Electricity	?	Modern Era	Loading Dock, Submarine, Power Plant	Own 3 Privateers
File:Icon Radio.png Radio	?	Modern Era	Resort, Broadcast Center	Build a National Park
File:Icon Chemistry.png Chemistry	?	Modern Era	Research Lab, Bazooka	Complete a Research Agreement
File:Icon Combustion.png Combustion	?	Modern Era	Reveals Oil, Tank, Oil Well, Modern Roads	Extract an Artifact

Atomic Era

The Atomic Era Technologies
Technology	Cost	Era	Unlocks	Eureka Boost	Notes
File:Icon Advanced Flight.png Advanced Flight	?	Atomic Era	Reveals Aluminum, Air Terminal, Bomber, Fighter,	Build 3 Biplanes
File:Icon Rocketry.png Rocketry	?	Atomic Era	Rocket Project, Missile, Spaceport	Boost only through Great Scientist or Spy
File:Icon Advanced Ballistics.png Advanced Ballistics	?	Atomic Era	Anti-Aircraft Gun, Machine Gun	Build 2 Power Plants
File:Icon Combined Arms.png Combined Arms	?	Atomic Era	Carrier, Battleship	Build an Airstrip
File:Icon Plastics.png Plastics	?	Atomic Era	Offshore Platform	Build an Oil Well	+1 Food from Fishing Boats
File:Icon Computers.png Computers	?	Atomic Era	?	Have a Government with 8 Policy slots
File:Icon Nuclear Fission.png Nuclear Fission	?	Atomic Era	Reveals Uranium, Atomic Bomb Project, Orbital Rocket Project	Boost only through Great Scientist or Spy
File:Icon Synthetic Materials.png Synthetic Materials	?	Atomic Era	Helicopter	Build 2 Aerodromes

Information Era

The Information Era Technologies
Technology	Cost	Era	Unlocks	Eureka Boost	Notes
File:Icon Telecommunications.png Telecommunications	?	Information Era	Submarine	Build 2 Broadcast Centers
File:Icon Satellites.png Satellites	?	Information Era	Mechanized Infantry, Moon Landing Project	Boost only through Great Scientist or Spy
File:Icon Guidance Systems.png Guidance Systems	?	Information Era	Rocket Artillery, S.A.M.	Kill a Fighter
File:Icon Lasers.png Lasers	?	Information Era	Jet Fighter, Missile Corvette	Boost only through Great Scientist or Spy
File:Icon Composites.png Composites	?	Information Era	Modern Armor, AT Crew	Own 3 Tanks
File:Icon Stealth Technology.png Stealth Technology	?	Information Era	Jet Bomber	Boost only through Great Scientist or Spy
File:Icon Robotics.png Robotics	?	Information Era	City Project	Have the Globalization Civic
File:Icon Nuclear Fusion.png Nuclear Fusion	?	Information Era	Alpha Centauri Project, Thermonuclar Missile, Offshore Platform Project	Boost only through Great Scientist or Spy
File:Icon Nanotechnology.png Nanotechnology	?	Information Era	Plantation Project	Build an Aluminum Mine
File:Icon Future Tech.png Future Tech	?	Information Era