

正在翻譯——原始文字為英文。
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.
| PS3 | 2011年1月18日 |
| PC | 2011年5月17日 |
| X360 | 2011年5月17日 |