Constructing buildings in Influence will allow you to take different types of actions. From Extractors, that allow you to mine your asteroids, to Bioreactors where you will grow food. Each building is important to the Adalian colony and so is the placement of the building. In the testnet client we will not require you to source the resources needed to construct these buildings. Instead you can simply construct Extractors and Warehouses during phase three of testing.
More Information on buildings can be found here: https://wiki.influenceth.io/gameplay/exploitation/Buildings
Within testnet phase 3 the only requirements will be: