Doom (1993 video game)
The ability for others to create custom levels and otherwise modify the game using WAD files turned out to be a popular aspect of "Doom". Gaining the first large mod-making community, "Doom" affected the culture surrounding first-person shooters, and also the industry. Several future professional game designers started their careers making "Doom" WADs as a hobby, among them Tim Willits, who later became the lead designer at id Software.
Doom (2016 video game)
Months after "Doom" was released, Zen Studios developed a virtual pinball adaptation of the game as part of the "Bethesda Pinball" collection, which became available as part of "Zen Pinball 2", "Pinball FX 2" and "Pinball FX 3", as well as a separate free-to-play app for iOS and Android mobile devices. At E3 2017 Bethesda announced "Doom VFR", a virtual reality adaptation of "Doom", compatible with the PlayStation VR and HTC Vive headsets. In "Doom VFR" the player assumes the role of Mars' last survivor who, after being killed, gets his consciousness uploaded into an artificial network, and is tasked with defeating the demons and restoring the facility's operations, having an array of electronic devices and weapons at his disposal. The game was released on December 1, 2017.