Mass Effect is a science fiction action role-playing third person shooter video game series developed by the Canadian company BioWare and released for the Xbox 360, PlayStation 3, and Microsoft Windows, with the third installment also released on the Wii U.The original trilogy largely revolves around a soldier named Commander Shepard, whose mission is to save the galaxy from a race of powerful mechanical beings known as the Reapers and their agents, including the first game's antagonist Saren Arterius.