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Operation: Matriarchy is a 2005 sci-fi first person shooter made by MADia Entertainment and published by Buka Entertainment. It takes place in the future where humanity has colonized space and becomes the Federation of Earth. On a colony called Velia in 2350, a virus appears and all the females become brutal killing machines and the males are enslaved and they declare war against the Federation of Earth. The game begins 7 years after the conflict when Senior Sergeant Paul Armstrong of the Federation is forced to fight them off his ship.