Land

Land represents how much territory your nation takes up. You should strive to grow the amount of land your nation has, as it provides several benefits to your nation.

### Benefits of land

Building Slots: Land will provide you 1 additional building slot for each 500 land you possess. If you have more than 2 times your development in land then additional land will only provide 1 building slot per 1000 land.

Development Cost Reduction: The cost of development is based on the amount of land you have. If you have more land than development, than the cost of development goes down, and if you have less development than land then the cost of development will be increased.

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{\displaystyle Development Cost Reduction From Land = \Bigl(\frac{Development}{Land}\Bigr)^2}

Special Buildings Slots: Land will provide permanent special sites based on the amount of land you have. Permanent building sites can't be traded or used with the lease mine site or dismantle precursor site. They can be lost though through losing non-core land in wars. Additionally, when you buy land there is a chance to find non-permanent special sites. These sites function the same way as permanent sites. However, they can be lost through policy actions and also through war (not added yet). You will gain sites according to the table below.

### Non Core Land vs Core Land

Land is divided into non-core land and core land. The difference being non-core land can be lost in wars, and core land is permanent. When you purchase Land 50% of it becomes core land and 50% becomes non-core land. Land that you gain through conquest becomes 80% non-core land and 20% core land.

### Land Cost

Land cost comes from the formula below. Note that it is calculated in increments of 50, so buying land in an increment of 50 is most efficient.

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{\displaystyle Land Cost = \frac{LandCostReduction
\* Land Being Bought\Bigl(\frac{TotalLand}{100}\Bigr)^2}{2}}

### Land Cost Reduction

Land cost reduction comes from a number of different sources. All reduction math is multiplicative in nature, rather than additive to avoid cost going to zero. This means if you have a level 10 tech that provides 2% cost reduction per level that it is providing 0.98^10 = 18.2% reduction rather than a flat 20%.

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> ##### Sources of Land Cost Reduction
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> * Land Reclamation Tech: 2% reduction per level
> * Army Engineer Corps Project: 5% reduction
> * Land Use Policy: -2% - 10% reduction depending on setting
> * Government Focus Policy: 5% reduction
> * Land Reclamation Budget: -10% - 10% reduction for 30 days depending on setting
> * Prioritize Land Acquisition Policy: 10% reduction for 7 days
> * Land Use Regulation Law: 1% reduction per level
> * Events: Can be positive or negative reduction
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### Other Sources of land

* Fund Land Purchase Immediate action: 250 land per use
* Winning wars: 4% of the other nation's non core land is taken
* Various combat in wars: Amount gained depends on your army's mobility
* Events: Various amounts depending on the event