Tile improvement (CivBE)

Tile improvements are created by Workers on most terrain types. All improvements except Roads and Magrails can only be built on terrain owned by the player's colony.
A given tile may have only 1 tile improvement; any attempt to build another one on the same tile will result in the previous tile improvement being replaced.
Note that most tile improvements only improve the tile yield, and thus have effect only if the relevant tile is being worked by a Citizen from a nearby city. Strategic resource improvements, however, also add the number of the relevant strategic resource to your total (regardless of the tile being worked, or not), while transportation improvements work at all times.
== Standard improvements ==
These improvements can be built anywhere there is suitable terrain.
	Tile imp	Tech required 	Built on 	Yield	Maint
	 	Cognition 	Any 	
+3
+1 with 
+1 with	-2
	 	Communications 	Flatland 	
+1, +1, +1 Orbital coverage
+1 with	-
	 	Bionics 	Any 	
+2, +1
+1 with	-2
	 	Biology 	Any 	
+2
+10 City Hitpoints
+1 with	-2
	 	 	
Grassland, Plains or Desert without Forest or Marsh
Hills or Tundra with Fresh Water
Ocean and Coasts	
+1
+1 with 
+1 with 
+1, +1 with	-
	 	 	Any 	
+2
+1 with 
+1 with 
+1 with	-
	 	 	Any land 	
+3
+1 with 
+2 with	-2
-2
	 	 	
Hills
, , or 	
+2
+1 on 
+1 on with 
+1 on 
+1 on 
+1 on Silica with Optical Surgery
+3 on 
+2 on with 
+1 with	-
	 	Autonomous Systems	Any 	
+2, heal adjacent friendly units for 20 HP per turn
+1 with	-
	 	Terraforming 	Any land without Miasma	
No yield from terrain
+2, +2, +2
+1, +1, +1 with	-6 
-5
in Rising Tide
== Resource improvements ==
These improvements can only be built on an appropriate resource. In addition to what is listed, some can produce additional resources.
	Tile imp	Tech req 	Built on	Yield	Maint
	 	 	, 	
+1 from 
+1 from 
+1 with	
	 	Robotics 	 	
+3
+1 with 
+1 with Observatory
+1 with Neurolab	-2
	 	 	, 	
+1 from 
+1 from 
+1 with	
	 	Terraforming 	 	
+3 	-
	 	Geophysics 	 	
+3
+1 with	-
	 	 	or 	
+1 on 
+1 on 
+1 on Resilin with Bionics Lab
+1 with	-
	 	Chemistry 	 	
+2, +1
+1, +1 with Petrochemical Plant	-2 
-1
	 	 	, , or 	
+1 on 
+1 on 
+1 on 
+1 on Fungus with 
+2 on 
+1 with	-
	 	 	 	
+1 on 
+1 with	-
	 	 	 	
+1
+1
+2 with	-
	 	Planetary Survey	or 	
+1 on in Base BE 
+1 on in Rising Tide
+1, +1 on 
+1, +1 with 
+1 with	-
	 	Alien Sciences 	 	
+3
+1 with 
+1 with 
+1 with 
+1 with Cloning Plant	-2
== Transportation improvements ==
These improvements can be built on any passable land tile. They can be built alongside any other improvement.
 	Tile improvement	Tech required	Maintenance
 	 	 	
1	 	 	
 	 	 	2
== Notes ==
Does not include terrain that workers can not travel on such as canyons. Also, this improvement can not be built on coast or ocean without the Rising Tide expansion.
== See also ==
* Tile improvement in other games
 
Category:Lists (CivBE)
Category:Improvement lists