The construction firm is a building that you use to build and upgrade other town buildings.
Upgrading the construction firm unlocks more buildings to construct.
There is a list of buildings, each costs a certain amount of brown resources and take a certain amount of time. At the start, there are tutorial arrows that show how to use the construction firm.
When constructing a building, or upgrading a building, they are closed and not active/usable, except the construction firm itself. Cancelling a construction project refunds ONLY the brown resources. Gems used in construction are lost.
When constructing a building or upgrading one, they get covered in different shaded brown cubes to show that the building is being worked on.
Allows you to queue up 2 buildings (3 if construction firm is maximized) Which are then automatically constructed one after another.
Allows you to use buildings while they are being constructed.