List of improvements in Civ6

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The following is a list of tile improvements in Civilization VI and its expansions.

This list excludes different types of Roads, since you can still further improve tiles containing Roads with another improvement.

Standard

These improvements are available to all civilizations after researching their respective technologies or civics.

Name	Technology/ Civic	Placement	Resource	Base Yield Modifier & Notes	Plunder
Farm		Grassland Plains Floodplains Also on Grassland (Hills) Plains (Hills) (Req. Civil Engineering)	Wheat Rice Maize	+1 Food +0.5 Housing +1 Food with two adjacent Farms (Req. Feudalism) +1 Food for each adjacent Farm (Req. Replaceable Parts)	Healing
Mine	Mining	Hills and on land tiles with resource	Copper Diamonds Gold Ore Iron Jade Mercury Salt Niter Coal Aluminum Uranium Amber	-1 Appeal +1 Production +1 Production (Req. Apprenticeship) +1 Production (Req. Industrialization) +1 Production (Req. Smart Materials)	Gold
Quarry	Mining	Only on resource	Stone Marble Gypsum	-1 Appeal +1 Production +2 Gold (Req. Banking) (Vanilla and only) +1 Production (Req. Rocketry) +1 Production (Req. Gunpowder) +1 Production (Req. Predictive Systems)	Faith
Plantation	Irrigation	Only on resource	Bananas Citrus Cocoa Coffee Cotton Dyes Incense Silk Spices Sugar Tea Tobacco Wine Olives	+2 Gold +0.5 Housing +1 Food (Req. Scientific Theory) +2 Gold (Req. Globalization)	Faith
Camp	Animal Husbandry	Only on resource	Deer Furs Ivory Truffles Honey	+2 Gold +0.5 Housing +1 Food (Req. Mercantilism) +1 Production (Req. Mercantilism) +1 Gold (Req. Synthetic Materials)	Faith
Pasture	Animal Husbandry	Only on resource	Sheep Cattle Horses	+1 Production +0.5 Housing +1 Food (Req. Stirrups) +1 Production (Req. Robotics)	Faith
Fishing Boats	Sailing	Lake Coast Only on resource	Fish Crabs Whales Pearls Amber Turtles	+1 Food +0.5 Housing +2 Gold (Req. Cartography) +1 Food (Req. Plastics)	Healing
Lumber Mill	Machinery	Woods Rainforest ( only) (Req. Mercantilism)		Vanilla and : +1 Production +1 Production if adjacent to a River +1 Production (Req. Steel) : +2 Production +1 Production (Req. Steel) +1 Production (Req. Cybernetics)	Gold
Fort	Siege Tactics	Any land		Occupying unit receives +4 Defense Strength and 2 turns of fortification. Built by a Military Engineer.	None
Airstrip	Flight	Flat terrain		-1 Appeal +3 Aircraft Capacity Built by a Military Engineer.	None
Seaside Resort	Radio	Only Coastal Grassland Plains Desert	Minimum Appeal of Breathtaking (4+)	Provides the tile's Appeal in Tourism. Provides the tile's Appeal in Gold.	Gold
Geothermal Plant	Synthetic Materials	Only on Geothermal Fissure		+2 Production +1 Science +4 Power	Gold
Wind Farm	Composites	Hills		+1 Production +1 Gold +2 Power	Gold
Solar Farm	Satellites	Grassland Plains Tundra Desert		+1 Production +1 Gold +2 Power	Gold
Offshore Wind Farm	Predictive Systems	Lake Coast		+1 Production +1 Gold +2 Power	Gold
Ski Resort	Professional Sports	Mountains		+1 Amenity Provides Tourism equal to the tile's Appeal. Cannot be built next to another Ski Resort.	None
Oil Well	Steel	Only on land tiles with Oil resource	Oil	-1 Appeal +2 Production	Gold
Offshore Oil Rig	Plastics	Lake Coast Only on Oil resource	Oil	-1 Appeal +2 Production	Gold
Missile Silo	Rocketry	Only on flat land		Acts as launch site for Nuclear and Thermonuclear Devices. Built by a Military Engineer.	None
Mountain Tunnel	Chemistry	Mountains		Allows units to move into it and exit through another Mountain Tunnel at the cost of 2 Movement. Built by a Military Engineer. Cannot be pillaged or removed.	Cannot be plundered
Railroad	Steam Power			0.25 Movement Built by a Military Engineer.	None
Seastead	Seasteads	Lake Coast Ocean		+2 Food +1 Production from each adjacent Fishing Boat. Fishing Boats receive +1 Production from each adjacent Seastead. +1 Culture and Tourism for each adjacent Reef. +2 Housing	Healing

City-state

These improvements can be built by any civilization that is the Suzerain of the specified city-state. Thus, whether you can construct these improvements with your Builders will depend on whether that particular city-state is present in your game and whether you are their Suzerain. Once built, these improvements stay there permanently, even if the territory they are built in changes hands, or the relevant city-state gets conquered. However, when pillaged, these improvements cannot be repaired if the city-state is no longer independent (i.e., its city-state status is lost to a civilization through military conquest or Loyalty flipping).

Name	City-state	Placement	Base Yield Modifier & Notes	Plunder
Alcázar	Granada	Cannot be built adjacent to another Alcázar.	+2 Culture Occupying unit receives +4 Defense Strength and 2 turns of fortification. Provides Tourism equal to its Culture output (Req. Flight). Provides Science equal to 50% of the tile's Appeal.	Faith
Batey	Caguana	Must be built on flat land. Cannot be built adjacent to another Batey.	+1 Culture +1 Culture for every adjacent Bonus Resource and Entertainment Complex, increasing to +2 Culture (Req. Exploration). Provides Tourism equal to its Culture output (Req. Flight).	Faith
Cahokia Mounds	Cahokia	Must be built on flat land including Floodplains. Cannot be built on Snow or adjacent to another Cahokia Mounds.	+3 Gold +1 Amenity from the first Cahokia Mounds in the city. +1 Amenity from the second Cahokia Mounds in the city (Req. Natural History) +1 Food for every 2 adjacent Districts (Req. Feudalism) or for every district (Req. Replaceable Parts). +1 Housing +1 additional Housing (Req. Cultural Heritage).	Healing
Colossal Heads	La Venta	Cannot be built on Snow.	+2 Faith +1 Faith for every 2 adjacent Woods or Rainforest (Vanilla & ) +1 Culture (Req. Humanism) (Vanilla & ) +1 Faith for every 2 adjacent rainforests (or every 2 adjacent woods), increasing to +1 Faith for every adjacent rainforest (or every woods) (Req. Humanism). Provides Tourism equal to its Faith output (Req. Flight).	Faith
Mahavihara	Nalanda	Must be built on flat land. Cannot be built adjacent to another Mahavihara.	+2 Science +1 Housing +1 Faith for every adjacent Holy Site. +1 Science for every adjacent Campus increasing to +2 Science for every adjacent Campus (Req. Scientific Theory). The first one constructed unlocks a random technology.	Faith
Moai	Rapa Nui	Must be built on Grassland, Plains, or Volcanic Soil (including Hills variants). Cannot be built adjacent to Rainforest.	+1 Culture +1 Culture for every 2 adjacent Moai, increasing to +1 Culture for every adjacent Moai (Req. Medieval Faires). +2 Culture if on or adjacent to a Volcanic Soil tile. +1 Culture if adjacent to a Coast or Lake tile. Provides Tourism equal to its Culture output (Req. Flight).	Faith
Monastery	Armagh	Cannot be built adjacent to another Monastery.	+2 Faith Provides +15 HP healing every turn for friendly religious units. +1 Faith for every 2 adjacent districts. +1 Housing. +1 additional Housing (Req. Colonialism).	Faith
Nazca Line	Nazca	Must be built on flat desert tiles.	+1 Faith to adjacent tiles. +1 additional Faith to adjacent tiles with a resource. +1 Food to adjacent Desert and Desert Hills (Req. Civil Service). +1 Production to adjacent flat tiles (Req. Mass Production). +1 Appeal. Tiles with a Nazca Line cannot be worked.	Faith
Trading Dome	Samarkand	Cannot be built adjacent to another Trading Dome.	+2 Gold +1 Gold for every adjacent luxury resource. International Trade Routes sent from cities with Trading Domes generate +1 Gold for each Trading Dome present.	Gold

Unique

These tile improvements are tied to a specific civilization or leader and, as such, will only be available to a player who is using that civilization or leader. When areas on the map that contain unique improvements change hands (i.e., their controlling city gets conquered by another civilization), these improvements simply vanish, and their tile becomes "virgin" land.

The only exception to this rule is the Feitoria. Feitorias can only be built by Portuguese Naus in foreign land and will stay there even if the parent city gets conquered by a third-party civilization. However, if the parent city is conquered by Portugal, all Feitorias inside will be removed.

Name	Civilization/ Leader	Technology/ Civic	Placement	Base Yield Modifier & Notes	Plunder
Château	French	Humanism	Must be built adjacent to a Bonus or Luxury Resource. Cannot be adjacent to another Château.	+2 Culture +1 Gold +1 Appeal to adjacent tiles +1 Culture for each adjacent Wonder, increasing to +2 Culture per Wonder (Req. Flight) +2 Gold if built on a River Provides Tourism equal to its Culture output (Req. Flight).	Faith
Chemamull	Mapuche	Craftsmanship	Minimum Appeal of Breathtaking (4+)	+1 Production Provides Culture equal to 75% of its tile's Appeal. Provides Tourism equal to its Culture output (Req. Flight).	Faith
Feitoria	Portuguese	Cartography	Lake Coast Must be adjacent to land and a Bonus or Luxury Resource in the territory of another civilization or city-state with whom you have Open Borders. Cannot be adjacent to another Feitoria. Cannot be removed.	+4 Gold +1 Production +4 Gold and +1 Production to Portuguese Trade Routes to this city	TBC
Golf Course	Scottish	Reformed Church	Cannot be built on Desert or Desert Hills. Limited to 1 per city. Tiles with Golf Courses cannot be swapped.	+1 Amenity ( +2 Amenities) +2 Gold +1 Appeal to adjacent tiles +1 Culture if adjacent to a City Center +1 Culture for each adjacent Entertainment Complex +1 Housing (Req. Globalization) Provides Tourism equal to its Culture output (Req. Flight).	Healing
Great Wall	Chinese	Masonry	Must be on territory border	Occupying unit receives +4 Defense Strength and automatically gains 2 turns of fortification. +1 Gold for every adjacent Great Wall. (Vanilla & ) +1 Culture for every adjacent Great Wall (Req. Flight). (Vanilla & ) +2 Gold +2 Gold for every adjacent Great Wall. +2 Culture for every adjacent Great Wall (Req. Castles). Provides Tourism equal to its Culture output (Req. Flight).	Gold
Hacienda	Gran Colombian	Mercantilism	Must be built on Grassland, Grassland Hills, Plains, or Plains Hills.	+2 Gold +1 Production +0.5 Housing +1 Food from every 2 adjacent Plantations, increasing to +1 Food for every Plantation with (Req. Replaceable Parts). +1 Production for every 2 adjacent Haciendas, increasing to +1 Production for every Hacienda with (Req. Rapid Deployment).	Healing
Ice Hockey Rink	Canadian	Colonialism	Must be built on Tundra, Tundra Hills, Snow, or Snow Hills. Limited to 1 per city. Tiles with Hockey Rinks cannot be swapped.	+1 Amenity +2 Appeal to adjacent tiles +1 Culture for each adjacent Tundra, Tundra Hills, Snow, and Snow Hills tile +2 Food and Production (Req. Professional Sports) +4 Culture if adjacent to a Stadium. Provides Tourism equal to its Culture output (Req. Flight).	Healing
Kampung	Indonesian	Shipbuilding	Lake Coast Must be adjacent to a coastal resource.	+1 Production +1 Housing +1 Food for each adjacent Fishing Boat +1 Housing (Req. Mass Production) +1 Production (Req. Civil Engineering) Provides Tourism equal to its Food output (Req. Flight).	Healing
Kurgan	Scythian	Animal Husbandry	Cannot be built on Hills.	+1 Faith +3 Gold +1 Faith for each adjacent Pasture, increasing to +2 Faith for each adjacent Pasture (Req. Stirrups). Provides Tourism equal to its Faith output (Req. Flight).	Faith
Mekewap	Cree	Pottery	Must be built adjacent to a Bonus or Luxury Resource. Cannot be adjacent to another Mekewap.	+1 Production +1 Housing +2 Gold for each adjacent Luxury Resources (Req. Cartography). +1 additional Production and Housing (Req. Civil Service). +1 Food for every two adjacent Bonus Resources, increasing to +1 Food for each adjacent Bonus Resource (Req. Conservation).	Healing
Mission	Spanish	Education		+2 Faith +2 Faith additionally, 1 Food, 1 Production if on a different continent than your Capital +1 Science for every adjacent Campus and Holy Site +2 Science (Req. Cultural Heritage) +2 Loyalty per turn for cities with a Mission next to the City Center and not on the original Capital's continent	Faith
Nubian Pyramid	Nubian	Masonry	Must be built on Desert or Floodplains.	+2 Faith +2 Food +1 Food if adjacent to a City Center +1 Science for each adjacent Campus +1 Gold for each adjacent Commercial Hub +1 Gold for each adjacent Harbor +1 Faith for each adjacent Holy Site +1 Production for each adjacent Industrial Zone +1 Culture for each adjacent Theater Square	Faith
Open-Air Museum	Swedish	Nationalism	Limited to 1 per city. Tiles with an Open-Air Museum cannot be swapped.	+2 Loyalty for this city +2 Culture and +2 Tourism for each type of terrain (Grassland, Plains, Snow, Tundra and Desert) in which at least one Swedish city is founded.	Faith
Outback Station	Australian	Guilds	Cannot be built on Snow, Tundra, Grassland Hills, or Plains Hills.	+1 Food +1 Production +0.5 Housing +1 Food for every adjacent Pasture +1 Production for every 2 adjacent Outback Stations (Req. Steam Power). +1 Food for every 2 adjacent Outback Stations (Req. Rapid Deployment).	Healing
Pā	Māori	Construction	Can only be built by Toa.	Occupying unit receives +4 Defense Strength and automatically gains 2 turns of fortification. A Māori unit occupying a Pā heals even if they just moved or attacked. Built by Māori Toa.	None
Pairidaeza	Persian	Early Empire	Cannot be built on Snow or Tundra or adjacent to another Pairidaeza.	+1 Culture +2 Gold +1 Appeal to adjacent tiles +1 Culture (Req. Diplomatic Service) +1 Culture for every adjacent Theater Square or Holy Site +1 Gold for every adjacent City Center or Commercial Hub Provides Tourism equal to its Culture output (Req. Flight).	Faith
Polder	Dutch	Guilds	Lake Coast Must be adjacent three land tiles.	+1 Food +1 Food for every adjacent Polder, increasing to +2 Food for every adjacent Polder (Req. Replaceable Parts). +1 Production +0.5 Housing +4 Gold (Req. Civil Engineering). +1 Production for every adjacent Polder (Req. Replaceable Parts). Increases Movement cost of tile to 3	Faith
Qhapaq Ñan	Pachacuti	Foreign Trade	Must be built adjacent to a Mountain.	Allows units to move into it and exit through another Qhapaq Ñan at the cost of 2 Movement Cannot be pillaged or removed	Cannot be plundered
Rock-Hewn Church	Ethiopian	Drama and Poetry	Must be built on Hills or Volcanic Soil. Cannot be adjacent to another Rock-Hewn Church.	+1 Faith +1 Faith for every adjacent Mountain and Hills tile +1 Appeal to adjacent tiles Provides Tourism equal to its Faith output (Req. Flight).	Faith
Roman Fort	Roman	Iron Working	Can only be built by Legion.	Occupying unit receives +4 Defense Strength and 2 turns of fortification (Same as standard Fort, but available earlier) Built by Roman Legion	None
Sphinx	Egyptian	Craftsmanship	Can be built on Floodplains. Cannot be adjacent to another Sphinx.	+1 Culture +1 Faith +1 Appeal to adjacent tiles ( +2 Appeal) +1 Culture (Req. Natural History) +2 Faith if adjacent to a Wonder +1 additional Culture if built on Floodplains Provides Tourism equal to its Culture output (Req. Flight).	Faith
Stepwell	Indian	Irrigation	Cannot be built on Hills or adjacent to another Stepwell.	+1 Food +1 Housing +1 Food if adjacent to a Farm +1 Faith if adjacent to a Holy Site +1 Faith (Req. Feudalism) +1 Food (Req. Professional Sports) +1 Housing (Req. Sanitation)	Healing
Terrace Farm	Incan		Must be built on Grassland Hills, Plains Hills, or Desert Hills.	+1 Food +1 Housing +1 Food for each adjacent Mountain +1 Food from every 2 adjacent Terrace Farms, increasing to +1 Food for every Terrace Farm (Req. Replaceable Parts) +2 Production for each adjacent Aqueduct +1 Production if adjacent to fresh water and not an Aqueduct	Healing
Ziggurat	Sumerian		Cannot be built on Hills.	+2 Science +1 Culture (Req. Natural History) +1 Culture if next to a River Provides Tourism equal to its Culture output (Req. Flight).	Gold

Governor

Governor improvements are a new type of tile improvement introduced in Rise and Fall. They can be built in any city to which a Surveyor Governor with the requisite title has been assigned.

Name	Title	Technology/ Civic	Placement	Base Yield Modifier & Notes	Plunder
City Park	Parks and Recreation	Games and Recreation	Cannot be built adjacent to another City Park	+2 Appeal to adjacent tiles +1 Culture +1 Amenity if adjacent to water +2 Culture additionally if Liang is in the city Provides Tourism equal to its Culture output (Req. Flight).	Healing
Fishery	Aquaculture	Sailing	Lake Coast	+1 Food +1 additional Food for each adjacent sea resource +1 Production additionally if Liang is in the city	Healing

National Park

Main article: National Park (Civ6)

National Parks are not tile improvements per se. They can only be created by Naturalists or Mounties by designating the tiles which are to form part of the National Park. A Naturalist will be consumed after expending its charge to establish a National Park.

Name	Technology/ Civic	Placement	Effects
National Park	Conservation	Can be established in a 4-tile area shaped like a vertical diamond. All 4 tiles must belong to the same city and have Appeal ratings of Charming (2) or higher.	Provides Tourism equal to the total Appeal of all the tiles included in it, as well as 2 Amenities to the city that owns it and 1 Amenity to the four closest cities in your empire.

Game mode-specific improvements

Secret Societies

Name	Secret Society	Title	Placement	Base Yield Modifier & Notes	Plunder
Vampire Castle	Sanguine Pact	Rising Hunger	Cannot be built on tiles with a resource or terrain feature	Duplicates yields from adjacent tiles and adds them to its own tile. These yields are provided directly to the Capital. Occupying unit receives +4 Defense Strength and 2 turns of fortification.	Cannot be plundered

Monopolies and Corporations

Name	Technology/ Civic	Placement	Effects	Plunder
Corporation	Economics	Limit of one per city. Tiles with Corporations cannot be swapped.	+4 Food +10 Production +3 Gold Doubles effect of Industry. Enables Create New Product project in city. Built by a Great Merchant.	Gold
Industry	Currency	Limit of one per city. Tiles with Corporations cannot be swapped.	+2 Food +2 Production +1 Gold +1 Great Merchant point	Gold

Zombie Defense

None of the improvements exclusive to this mode can be pillaged or have their tiles worked.

Name	Technology/Civic	Effects
Barricade	Military Engineering	Deals 10 HP damage to, and exerts zone of control on, hostile units passing through or adjacent to it.
Modernized Trap	Ballistics	Deals 20 HP damage to, and depletes the movement of, hostile units passing through it. Built by a Military Engineer.
Reinforced Barricade	Rifling	Deals 15 HP damage to, and exerts zone of control on, hostile units passing through or adjacent to it. Built by a Military Engineer.
Trap	Construction	Deals 15 HP damage to, and depletes the movement of, hostile units passing through it.

Added in the Rise and Fall expansion pack.
Added in the Gathering Storm expansion pack.