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 "".
Missile Command
Contemporary "Missile Command" clones include "Missile Defense" (1981) for the Apple II, "Stratos" (1982) for the TRS-80, "Repulsar" (1983) for the ZX Spectrum, and "Barrage" (1983) for the TI-99/4A. Silas Warner programmed the 1980 clone "ABM" for the Apple II several years before writing "Castle Wolfenstein". Similarly, John Field programmed the "Missile Command"-like game "ICBM" (1981), then went on to create "Axis Assassin", one of the first five games published by Electronic Arts.