The game is set in post-apocalyptic Las Vegas, Nevada and the Mojave Desert known as the "Mojave Wasteland". Unlike other settings in the Fallout series, Las Vegas was not affected by a nuclear attack. Its buildings remain intact, and mutation of its inhabitants is minimal. New Vegas has new weapons on it, some of the old Fallout 3 weapons, and a weapon modification system. The modification system allows you to customize your own weapons, such as mounting scopes, modifying your rate of fire, and changing the size of your magazine.
In this one there's new Companion Wheel that will allow greater control of companions by selecting commands that are presented in a radial menu. Players can set and change combat tactics, behavior towards your foes and usage of resources. Players can visit casinos to participate in mini-games such as poker and slots to earn some extra money. There will also be a Hardcore mode which eliminates fast travel, gives ammo and currency weight to the players character, but healing will take time, healing crippled limbs will require skills and equipment, and the need for food, water and sleep will be neccessary.
