Building costs

This article may contain outdated information that is inaccurate for the current version of the game. It was last updated for For the Motherland.

Statistics

Building Name	IC	Time (Days)	Max. Level	Knowledge Type	Knowledge Increase	Effect
Air Base	2	180	10	Construction	0.13	+1 air capacity
Naval Base	5	180	10	Construction	0.33	+1 naval capacity
Industry	5	365	10	Construction	0.67	+1 IC
Underground	4	180	1	Militia	0.1	+ 1 local underground
Coastal Fort	5	180	10	Construction	0.33	-9% to shore attackers
Land Fort	5	180	10	Construction	0.33	-9% to land attackers
Anti-Air	3	60	10	Artillery	0.25	Fires at enemy aircraft (equal to 1 Air Attack?)
Infrastructure	0.5	180	10	Construction	0.13	Faster movement and more supply throughput
Radar Station	2	180	10	Electronic Eng.	0.5	Detects enemies, bonus to air combat
Nuclear Reactor	50	180	10	Nuclear Bomb	6.0	Required for Nuclear Bomb research
Rocket Test Site	20	180	10	Rocket	6.0	Required for Rocket Engine research

Forts and Infrastructure must be constructed directly in the provinces where they are to be located. This means that the level of these buildings in a province must be built up sequentially.
Air and Naval bases can be built outside of provinces; however, they can only be deployed into provinces with zero level of that kind of base. Further levels must be built sequentially.
Underground resistance (UR) can be built by Governments in Exile or Majors, and placed in allied countries. UR will spawn as militia or as partisans in an adjacent province.
Other buildings can be built outside of provinces and deployed anywhere. For example, you can build 10 levels of Radar Station in parallel and deploy them all to the same province. Note that if you deploy many levels in the same province at the same time it may take up to a few months for them all to come online.