Courthouses are used to store resources gathered by workers; inns are large buildings that house randomly appearing workers, mercenaries, and heroes who can typically be hired in exchange for resources; homes are used to increase the amount of maximum units you are able to have; technical facilities are generally used to research bio-upgrades, vehicles, advanced structures, and complex machinery; war colleges are generally used to train warriors and scouts; and arcaneries are generally used to train mages and research spells.
