Polybius (Urban Legend)

Polybius is a fictitious arcade game, the subject of an urban legend that supposedly first emerged in early 1981. [2]

Though the original has never been authoritatively located, several video games have been published using the name Polybius, drawing upon the urban legend as inspiration. The game’s design is partly based on a contested description of the Polybius arcade machine posted on a forum by an individual named Steven Roach who had claimed to have worked on the original.

Source: en.wikipedia.org