Mass Effect” is a science fiction action-RPG created by BioWare Corp., the commercially and critically acclaimed RPG developer of “Jade Empire,” “Star Wars: Knights of the Old Republic,” “Neverwinter Nights,” and the “Baldur’s Gate” series. “Mass Effect” will deliver an immersive story driven gameplay experience with stunning visual fidelity. Published by Microsoft Game Studios, “Mass Effect” will be exclusively for the Xbox 360 video game system.

As the first human Specter – sworn defenders of galactic peace – your mission is to halt the advancing armies of a legendary agent gone rogue. But as you lead your elite team across hostile alien worlds, you will discover the true threat is far greater than anyone imagined.