Shattered Steel takes place in a desolate future where humanity is on the verge of extinction. The single-player campaign takes place over 5 separate worlds (planets), each planet has about 20 missions. The enemy in the game is a group of aliens who are in some way or another organic, mechanical or a combination of both. Examples of this are the Aspis, a spider-like enemy with an organic look and the Wasp, a very mechanical looking air vehicle. As the story unfolds, more is discovered about who controls the aliens, what their purposes are, and how to destroy them once and for all.