There are a variety of base items available to the common Supergroup architect. Some items serve a function in the base, while some are only decorative. Decorative items are purchased or part of a veteran reward. Items that provide energy, control, or can be interacted with are always purchased or crafted. There are also a number of options for Base Styles that are not technically items, but which are also controlled through the base editor.
Base items can be found in a couple different ways:
In addition, there are several decoration-styles to change the look of the rooms: