If you didn't get the reference with the final shot, the end credits confirm the clue. The Fallout end ... and set between Fallout 3 and Fallout 4, taking place across Arizona, Nevada, and California.

The Fallout 4 Downgrader "quickly reverts your game to ... Bethesda has so far stayed quiet about the update's reception, so there's no clue as to whether an official fix or even an option to ...