The Build A Base is a type of roleplay ship often found in the Test Server. Players are typically instructed to construct their own bases inside a ship using some starter materials such as Machine Fabricators, Blocks, Recyclers, and Wrenches. They then usually get additional materials from "mining" (breaking) surrounding blocks, asking for more items from the captains (with sandbox mode, this is made possible) or trading at areas with trader mechanisms to acquire higher-tier items, such as flux, ice or rubber.