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[[File:Factory_port_trains.png|thumb|200x200px|Factories and [[Port|ports]] connected by [[Railroad|Railroads]] with a [[Train]] on the tracks]]

[[Factory|Factories]] are a [[Buildings|Building]] that allows players to earn [[Gold]] by connecting with other non-military buildings.

== Mechanics ==
[[Factory|Factories]] spawn [[Train|trains]] and [[Railroad|railroads]] automatically when two or more connectable buildings have been placed within range on land. The connectable buildings are: '''Factory''', [[Port]], and [[City]], though only Port and City train stations pay out gold. The railroads can currently only travel directly in cardinal directions.

The distance within which a factory and another building can connect in is between 15 and 100 tiles, with each individual railroad connection having a maximum distance of 120 tiles.

Once a train reaches a station that pays out gold, both the station owner and the train owner receive the gold reward (unless a single player owns both, then they will get the reward just once). The amount of gold a train gives upon visiting a station depends on the relationship between train owner and the owner of the territory in which the train station's building is built at:
{| class="wikitable"
|+Gold reward based on relationship
!Owner
!Gold Reward
|-
|Allies
|35,000
|-
|Neutral / Teammates
|25,000
|-
|Self
|10,000
|-
|Enemies / Embargoed
|0
|}
The probability of a train spawning during every tick is dictated by how many factories the player owns, given by the formula

{{Scrollable Math|<math> \text{spawnChance} = \frac{1}{(\text{numFactories} + 10) * 20}</math>}}

This means that the more factories a player owns, the less likely it is '''each individual one''' will will spawn a train. The '''overall''' chance of a train spawning in your network, however, increases. The expected amount of trains is given by the formula

{{Scrollable Math|<math>\text{expectedOverallSpawnChance} = \frac{\text{numFactories}}{(\text{numFactories}+10) * 20}</math>}}

== Trivia ==
The game's code keeps track of how many wagons each train is carrying, with a function for loading cargo, and managing where the locomotive is, but as of writing, there is no known gameplay usage of this data.

== See also ==

* [[Train]]
* [[Railroad]]
* [[Update:0.24.0]]
* [[Update:0.25.0]]
[[Category:Buildings]]
[[Category:Economy]]