Supreme commander / Supreme Commander Forget Alliance (or SC / SC:FA) - This is the universe. A millennium has passed in the Milky Way since the beginning of the Endless War. It was unleashed first due to the desire of the Cybran Nation to become independent. The intensified war was caused by the appearance of a third faction that intends to impose their vision.

You will find yourself in the year 3884, as a native or a foreigner of this universe.

Aeon is a faction that is spiritualistic, psychic, and somewhat pacifistic in some ways, appeared later than all other two factions. Its goal is to cover the whole human species with a "Path" - its own vision transmitted from the extinct alien civilization "Seraphim".

The Cybran faction, which is materialistic and individualistic, broke away from Earth's Empire first of all. As a result, when Dr. Gustav Brackman disappeared with dozens of ships carrying representatives of the Cybran Nation, all of them were "symbionts" - a combination of machine and human.

UEF is the faction closest to Earth's ideals. It is authoritarian (despite being a presidential republic) and militaristic. It intends to bring the breakaway factions back under its control. Although this faction lacks the impressive technologies or abilities of the other two, it still uses genetic engineering and has an advantage in numbers.