Wolfenstein is a series of predominantly first-person shooter video games, originally developed by Muse Software. The third game in the franchise, Wolfenstein 3D, was developed by id Software, and is widely regarded to have helped popularize the first-person shooter genre. In 2001, the series was rebooted with Return to Castle Wolfenstein, developed by Gray Matter Interactive. This was followed by Raven Software's Wolfenstein in 2009. After Bethesda Softworks acquired id Software, MachineGames, a newly founded Bethesda subsidiary, released Wolfenstein: The New Order in 2014 and a standalone expansion Wolfenstein: The Old Blood in 2015.
The majority of the games follow protagonist William "B.J." Blazkowicz, and his fights against the Nazi powers. The New Order is set in an alternate history in which the Axis Powers won the Second World War.