Buildings turn a captured hex into a working part of your economy. Here you'll find out where you can build, what categories of buildings exist, how the cost is built up, and who the settlers and engineers are.
Where you can build
Buildings can be placed on your faction's hexes when the land type supports the selected building. The server also checks whether the building is allowed for your faction, whether your Construction skill is high enough, and whether any special adjacency rules are satisfied.
Energy production. Turn raw resources into energy for the player.
Mines — raw material extraction. Built only on a hex with matching deposits; equipped with a team and equipment, they provide a stable income of resources.
Processing factories. Take raw materials and turn them into something more valuable — boards, steel, glass, bread, settlers, warriors.
Army and peasant production. Houses, Barracks and portals let you grow the population and form an army.
Other unique buildings. There are specialized buildings, for example the propaganda tower significantly increases your rating in the sector, outposts let you interact with territory from a distance.
Build cost — resources and recipes
Every building has its own "recipe" — a fixed set of resources (boards, steel, glass, etc.) that you need to spend to put up the building.
Why building may fail
Wrong hex. Not every land type supports every building.
Wrong faction. Some advanced buildings are tied to Ice or Flame.
Not enough skill. Some buildings require a minimum Construction level.
Bad adjacency. Some unique buildings cannot be placed on the edge of explored territory or next to similar objects.
Workers — settlers and engineers
Mines don't work on their own — they need workers. There are two types in the game:
Settler. Cheap, but works slowly and inefficiently.