Fallout 4 is a 2015 action role-playing game developed by Bethesda Game Studios and published by Bethesda Softworks. It is the fourth main game in the Fallout series and was released worldwide on November 10, 2015, for PlayStation 4, Windows, and Xbox One. The game is set within an open world post-apocalyptic environment that encompasses the city of Boston and the surrounding Massachusetts region known as "The Commonwealth".

The Xbox One is a home video game console developed by Microsoft. Announced in May 2013, it is the successor to Xbox 360 and the third console in the Xbox series. It was first released in North America, parts of Europe, Australia, and South America in November 2013 and in Japan, China, and other European countries in September 2014. It is the first Xbox game console to be released in China, specifically in the Shanghai Free-Trade Zone. Microsoft marketed the device as an "all-in-one entertainment system", hence the name "Xbox One". An eighth-generation console, it mainly competed against Sony's PlayStation 4 and Nintendo's Wii U and later the Switch.