Microsoft announced today a new downloadable content pack for the Sci-Fi RPG game, “Mass Effect”. Launched in November last years, “Mass Effect”, a title created by BioWare and published by Microsoft, has sold so far 1,6 million units.

The game's plot debuts in the year 2183 and its main character is a tough human soldier called Commander Shepard. The player will have to assume the soldier’s role for starting the adventure and direct Shepard’s ship, the SSV Normandy, towards new places and new battles.

But from March 10 the gamers who have already finished the game will be able to experience new adventures, thanks to “Bring Down The Sky”. The content pack will be available fo 400 MS points.

Microsoft said the pack offers a new uncharted world that introduces the notorious and feared alien race of the Batarians. A Batarian extremist group has hijacked a mobile asteroid station in the Asgard system, setting it on a collision course with the nearby colony world of Terra Nova. Only Commander Shepard can save the millions of innocent civilians before the asteroid completes its deadly descent.

"Bring Down the Sky" contains approximately 90 minutes of heart-pounding action and a new Achievement worth 50 Gamerscore points.