Rear Guard is a game originally written for the 8-bit Atari computer and released in 1982 by Adventure International. Neil Larimer created the game with assistance from Sparky Starks; it was subsequently ported by other programmers to the Apple II, TRS-80, and TRS-80 Color Computer computer platforms. The TRS-80 port was created by Wayne Westmoreland and Terry Gilman The TRS-80 Color Computer version was created by Jim Hurd of Coniah Software The Apple II version was created by John Anderson Source: Wikipedia, "Rear Guard (video game)", available under the CC-BY-SA License.