"Mass Effect" will deliver an immersive, story-driven gameplay experience presented in a cinematic style with high production values, extraordinary levels of visual fidelity, incredible exploration and realistic digital actors. Players assume the role of an elite human Spectre agent, Commander Shepard, entrusted with keeping law and order in the galaxy. As they discover and explore the uncharted edges of the galaxy, they come closer to an overwhelming truth learning that the placid and serene universe they know is about to come to a violent end and that they are the only being who can stop it.