18 Jan 2011
17 May 2011 - PC (Microsoft Windows)
17 May 2011 - Xbox 360
18 Jan 2011 - PlayStation 3
Mass Effect: Genesis is a downloadable "interactive backstory comic". Genesis fills the role of Mass Effect for new players by introducing them to the story of the original game and allowing them to make six of the major plot decisions that players could make. If downloaded, the comic appears between the opening level and character customization. There are two versions of the comic, one each for a male and female Commander Shepard.