Grey Goo

Grey Goo is a real-time strategy (RTS) game that combines classic strategy mechanics and a balanced combat system with an emphasis on large-scale decision-making. It puts you at the center of a tactical struggle for survival—and ultimately, control of Ecosystem 9. Command one of three unique factions: the Humans, masters of defensive architecture; the Beta, a proud, versatile alien race; or the Goo, an enigmatic, highly mobile life form.