Yes, dammit, I’m still obsessed with “Mass Effect.”

So, it is with a big wahoodle that I say that today’s the day…the day when the “Bring Down the Sky” content pack hits Xbox Live Marketplace. For a mere 400 MS points, you get 90 more minutes of “Mass Effect” and a new achievement worth 50 points.

Awesome.

Here’s the breakdown of the pack’s storyline:

“Bring Down the Sky” includes a new uncharted world that introduces the Batarians (see image): a notorious and feared alien race. 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.