Bring Down the Sky

Bring Down the Sky was the first downloadable content released for Mass Effect on March 11, 2008 for 400 Microsoft Points on the Xbox 360 or on the PC for 400 BioWare Points. Later it was announced that this pack was to be bundled for free with the PC version, which was then later changed to "downloadable for free". While free for the PC version, currently the price is 80 Microsoft Points on Xbox Live. The mission takes place in the Asgard system, where an asteroid has been hijacked and sent on a collision course with the human colony of Terra Nova.

Description
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 you, and the hand-picked crew of the Normandy, can save the millions of innocent civilians before the asteroid completes its deadly descent.

This first downloadable content pack further expands the Mass Effect universe and continues the adventures of Commander Shepard and the Normandy crew.

Content
The pack includes a new system, three assignments, and about 90 minutes of gameplay. The pack also introduces the batarians.
 * Assignments
 * X57: Bring Down the Sky
 * X57: Missing Engineers
 * X57: Avoid the Blasting Caps
 * New System
 * Asgard System, Exodus Cluster
 * New Achievement
 * Colonial Savior achievement for 50 gamerscore.

Trivia

 * A small shack on a hill (near the fusion torch in the center of the map) is home to X57 Radio, a small pirate radio station run by the X57 engineers. The computers mention a disagreement with the project director who wanted to shut the station down, because the music caused young engineers to "riot and sleep with aliens". When the director was asked if he'd actually heard the music, he said that he'd heard about it from someone else who'd heard something about what the station played. (PC version only; in the Xbox360 version, the console only displays the station's slogans.)
 * This is probably a response to the inaccurate reporting about Mass Effect's romance subplot that circulated after the initial Xbox360 release.
 * Another screen that appears when using the same console reads as follows:

"This computer is filled with operation logs and personal journals for a small pirate music station operated by X57's engineers. It includes scripts for several promotional messages, none of which appear to have been recorded.
 * Radio X57: Rocking This Rock Since 2182
 * Radio X57: When Your World Seems Hollow, We Help You Touch the Sky (A possible reference to the Classic Star Trek Episode 'For the World Is Hollow and I Have Touched the Sky')
 * Radio X57: Talk Hard (A reference to the movie Pump Up The Volume)
 * Radio X57: Your Last, Best Hope for ROCK within 300,000 Kilometers. (Possibly a reference to the Babylon 5 station, described as 'Our last, best hope for peace'.)"