Experience all the sights and sounds of fabulous New Vegas, brought to you by Vault-Tec, America's First Choice in Post Nuclear Simulation. Explore the treacherous wastes of the Great Southwest from the safety and comfort of your very own vault: Meet new people, confront terrifying creatures, and arm yourself with the latest high-tech weaponry as you make a name for yourself on a thrilling new journey across the Mojave wasteland.

Fallout: New Vegas takes place during the year 2281, three years after the estimated end of Fallout 3, and 204 years after the Great War of 2077, making this installment chronologically the latest in the series thus far. The game is set in post-apocalyptic Las Vegas, Nevada and the Mojave Desert known as the "Mojave Wasteland" which is roughly the same size as the "Capital Wasteland" in Fallout 3. Unlike other cities in the Fallout series, Las Vegas was not struck directly by a nuclear attack. Its buildings remain intact, and mutation of its inhabitants is minimal. The city is divided between various factions, most notably the New California Republic (NCR), the slave-driving Caesar's Legion, and the various factions of New Vegas itself. Landmarks featured in Fallout: New Vegas include the Hoover Dam that supplies power to the city and the Helios 1 solar energy plant.