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Terrain (Civ4)

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Terrain is "the physical features of a tract of land."[1] In Civilization IV, each tile has one base terrain type, may or may not have hills, and may also have one or more terrain features. Together, these are the tile's terrain, and they are assumed to cover it uniformly. Terrain has a strong effect on the movement and combat of land units.

Features of water are also called terrain for our purposes, even though the English parallel to "terrain" would be "marine." Terrain also affects naval combat, although it is far less complex there.

Land TerrainEdit

Base TerrainEdit

There are five base land terrain types. All require 1 movement point to enter, and all gain 1 bonus commerce if next to a river.

Name Bread Hammer Coin Special abilities
Grassland 2 0 0
Plains 1 1 0
Tundra 1 0 0
Desert 0 0 0

Improvements take 25% longer to build

Ice 0 0 0

Improvements take 50% longer to build

RiversEdit

Rivers are exceptional terrain in that they are not "in" or "on" a tile, but they run between tiles. A river is considered adjacent to all tiles that it runs along, including all four tiles which touch a place where the river bends or empties into water. Rivers supply fresh water to all adjacent tiles. A river adds +1 commerce to all adjacent land tiles, unless they also contain an unimproved forest or jungle. Only cities adjacent to rivers may build Levees.

Vertical TerrainEdit

Hills are a sort of terrain feature, but they are not removable and thus in their own class. When a land tile has no hill, and is not a peak, it is flatland. See the Hill page for a bit more detail.

Name Bread Hammer Coin Special abilities
Flatland 0 0 0
Hill -1 +1 0
  • Can improve with Mine, Windmill
  • Movement Cost: +1
  • Sight distance: +1
Peak - - -
  • Impassable

Terrain FeaturesEdit

Terrain features are considered removable by Civilization IV. Many can be removed by Workers, but all features are removed when you build a city. Thus, if you build a city on a floodplain, the floodplain is removed and only desert is left.

Name Bread Hammer Coin Special abilities
Fallout -3 -3 -3
  • +0.50 Unhealthiness in nearby cities
  • Cannot build improvements
  • Movement Cost: +1
Floodplain 3 0 1
  • must be next to river
  • must be in desert
  • +0.40 Unhealthiness in nearby cities
Forest 0 +1 0
  • Movement Cost: +1
  • +0.5 Health in nearby cities
  • Defending units get +50% strength
Jungle -1 0 0
  • Movement Cost: +1
  • +0.25 Unhealthiness in nearby cities
  • Defending units get +50% strength
Oasis 3 0 2
  • Source of fresh water
  • Must be in desert
  • Movement cost: 2
  • Cannot build cities or improvements

Water TerrainEdit

Base TerrainEdit

A lake is any body of water smaller than a particular size in tiles, which is moddable but normally 9 tiles. Even though all water tiles benefit from Lighthouses, being adjacent to a lake is not sufficient for a city to be coastal.

Name Bread Hammer Coin Special abilities
Lake 2 0 2
  • Provides fresh water
  • Defending units get +10% strength
Coast 1 0 2
  • Adjacent city is coastal
  • Defending units get +10% strength
Ocean 1 0 1

Terrain FeaturesEdit

Ice is a feature of water, although unlike land features it cannot be removed.

Name Bread Hammer Coin Special abilities
Ice - - -
  • Impassable

ReferencesEdit

  1. http://www.merriam-webster.com/dictionary/terrain
Civilization IV [edit]
WarlordsBeyond the SwordColonization

BuildingsCivicsCivilizationsPromotionsResourcesSoundtrackTechnologiesTerrainsUnitsWonders

†Total conversion remake of the game Sid Meier's Colonization using Civilization IV engine

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