Fallout: New Vegas - Ultimate Edition is a role-playing video game developed by Obsidian Entertainment and published by Bethesda Softworks. It was released in 2012 for the Microsoft Xbox 360 platform. The game is set in a post-apocalyptic open world environment and is part of the Fallout series. It features both shooter and RPG elements and is rated M for mature audiences. The Ultimate Edition includes all DLCs and additional content.