Gridrunner is a series of shoot 'em up games written by Jeff Minter. The original Gridrunner was published for various 8-bit systems in 1982 and 1983 with Gridrunner 2 following in 1983. A third installation, Voidrunner was released in 1987. Confusingly, Gridrunner 2 was released in the US under the name Attack of the Mutant Camels, which was also the title used for a totally different game released the same year by Minter.
The original game was written in a week. The series was revived in 2002 with Gridrunner++, for modern platforms, and followed by later games in the series. In August 2012, a Mac OS X port was released via the Mac App Store.