Polybius is a supposed arcade game featured in an Internet urban legend. According to the story, the
Tempest-style game was released to the public in 1981, and caused its players to go insane, causing them to suffer from intense stress and horrific nightmares. A short time after its release, it supposedly disappeared without a trace. No evidence for the existence of such a game has ever been discovered.
++++++++++Polybius was born around 203BC in
Megalopolis,
Arcadia which at that time was an active member of the
Achaean League.