Polybius??is an??urban legend??concerning a fictitious 1981??arcade game. The legend describes the game as part of a government-run??crowdsourced??psychology experiment based in??Portland, Oregon. Gameplay supposedly produced intense??psychoactive??and addictive effects in the player. These few publicly staged arcade machines were said to have been visited periodically by??men in black??for the purpose of data-mining the machines and analyzing these effects. Allegedly, all of these??Polybius??arcade machines disappeared from the arcade market.
