Fallout: New Vegas is a 2010 action role-playing game developed by Obsidian Entertainment and published by Bethesda Softworks. It was released for Microsoft Windows, PlayStation 3, and Xbox 360. Set in the Mojave Desert 204 years after a devastating nuclear war, the player controls a courier who wakes up after being shot in the head by an unknown assailant. While tracking down their assailant, the courier becomes embroiled in a larger conflict between different governing factions vying for control of the region.
https://en.wikipedia.org/wiki/Fallout:_New_Vegas