Category:Buildings

In SpaceInvasion, resources are produced by mines, the four resources are Pig Iron, Metal, Kryptonite, and Spice. Pig Iron, Kryptonite, and Spice are each produced by their respective mines, Metal is produced by the Blast Furnace. In order for the Blast Furnace to produce Metal, it requires Pig Iron, it requires 2 Pig Iron to produce one unit of Metal. The production of the mines runs night and day, and is always visible to you. You can immediately use the raw materials which are produced. The production amount depends on the construction level of the mine. You do not have to be online in order to produce resources; once you have built a mine, it will start producing resources until the required energy is insufficient, or in the case of the Blast Furnace, there is no remaining Pig Iron.