
The third game follows one hundred years after the events of Homeworld: Cataclysm, which seem to have little bearing on what has happened since. In this sudden crisis enemies become allies and allies enemies as the Somtaaw search for a way to stop the Beast. No longer just a minor part in interstellar affairs the Somtaaw must confront the enemy that is their responsibility and rid the galaxy of it. This kiith, known as Kiith Somtaaw plays a small part in the role of the galaxy until they stumble upon a dangerous and ancient alien lifeform, known simply as " the Beast" which they accidentally unleashed on the galaxy. The second game, Homeworld: Cataclysm, developed by Relic Entertainment's associate, Barking Dog Studios, follows one of the small factions known as a kiith within the Kushan. The ensuing journey home brings them into danger and reveals the origin of their mysterious exile and ends in their confrontation with the powerful Taiidan Empire. With the discovery of an artifact in the desert the Kushan now know themselves to be native to another world, known by the ancient word Hiigara "home". The first of these games known simply but definitively as Homeworld details the journey of the Kushan, a race of humanoids who have spent all of their known history on an inhospitable desert world known as Kharak.

The only official work produced in the Homeworld Universe is that of the games and the material associated with them (i.e., strategy guides and manuals).
