By the mid 26th century humanity has conquered the universe and colonized countless planets. Yet life in space requires a great deal of adaptation. Bred for just these conditions, the cybernetically adapted Tyi and the biogenetically optimized Geniden have outgrown their creators to become the new ruling races. Their uncompromising battle for total mastery of space leads humanity into the sphere of influence of an ancient alien life form – a life form which tolerates no other cosmic civilizations but its own. In this battle against an overpowering enemy, players must first choose which of the two rival factions they wish to join as they try to save humanity.