Send out units to take over other territories and win the battle by taking full control of them. Then it'll set free of all territories from the dark force.
The Redvonian King has sent you, his Seige Master, and Halgrim his finest mason, to assemble the greatest minds in the land to destroy Blutias Empire's castles.
As a transport company manager, build houses for the workers who will load your truck with goods and deliver them from point A to point B. It's a Simcity game with tower defense like elements.