It was a commercial success, shipping more than 5 million copies, and is estimated to have sold around 12 million copies worldwide. New Vegas received positive reviews, with critics praising the game's writing, quests, and improved gameplay, though it was criticized for its glitches and bugs on launch. After surviving, the Courier begins a journey to find their would-be killer and recover the package, makes friends and enemies among various warring factions, and ultimately becomes caught up in a conflict that will determine who controls New Vegas and the Mojave Wasteland. While transporting a package across the Mojave Desert to the city of New Vegas, what used to be Las Vegas, the Courier is ambushed, robbed of the package, shot, and left for dead.

Players take control of a character known as the Courier. It is not a direct sequel, but does mark the return of several elements found in Fallout 2. The main story of New Vegas takes place in the year 2281, four years after the events of Fallout 3 and 204 years after the bombs fell.

It is set in a world that deviated onto an alternate timeline thanks to Atomic Age technology, which eventually led to a global nuclear apocalypse in the year 2077 in an event referred to as 'The Great War', caused by a major conflict between the U.S. A spin-off of the Fallout series, the game is set in a post-apocalyptic open world environment that encompasses a region consisting of Arizona, California, and Nevada. It was announced in April 2009 and released for Microsoft Windows, PlayStation 3, and Xbox 360 on October 19, 2010. Fallout: New Vegas is a 2010 post-apocalyptic action role-playing video game developed by Obsidian Entertainment and published by Bethesda Softworks.

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