Bioware and EA have announced the release of the first downloadable content (DLC) pack for Mass Effect on the PC.Bring Down the Sky adds a new, uncharted world to the Mass Effect universe as well as a deadly new race, the Batarian. There is around 90 minutes of new gameplay as Commander Shepherd must stop the Batarian extremists from colliding a mobile asteroid station with a nearby planet.The DLC is free and can be downloaded by starting the game and following the instructions on the launch screen.