
The Lost Mission is the second official expansion for Doom 3, launched in 2012 as part of the Doom 3: BFG Edition. In this add-on, players assume the role of a surviving member of Bravo Team, the marine unit the protagonist of the original game was originally sent to reinforce. The main goal, assigned by Dr. Richard Meyers, is to disable a powerful long-range teleporter located in the classified Exis Labs to stop demons from using it to invade Earth.
| PC | October 15, 2012 |
| X360 | October 15, 2012 |
| PS3 | October 15, 2012 |