Wolfenstein 3D
Although id Software did not develop another "Wolfenstein" game, as their development focus shifted to "Doom" shortly after release, and has never returned to the series, multiple "Wolfenstein" titles have been produced by other companies, sometimes using game engines developed by id. The first of these newer "Wolfenstein" games was "Return to Castle Wolfenstein" in 2001, a reboot of the series, and the latest is the 2017 "".
Splash Damage
Following Market Garden's success, Activision and id Software asked Splash Damage to produce three additional multiplayer maps for the "Return to Castle Wolfenstein Game of the Year Edition". The same year, Splash Damage partnered with the two companies to develop "", a stand-alone expansion based on "Return to Castle Wolfenstein". The Windows version of "Wolfenstein: Enemy Territory" was released online for free on 29 May 2003, with Linux and Mac versions following later. "Wolfenstein: Enemy Territory" won several Game of the Year and Editor's Choice awards and remains one of the most popular online first-person shooter titles.