Speculative theory

Polybius ArcadeAtlas

Society & Culture · Internet-native theories

Polybius is an urban legend about a mysterious arcade cabinet said to have appeared briefly in Portland, Oregon arcades. Popular retellings connect Polybius to government mind-control experiments, including comparisons to MKUltra.

Scores

LSI: 82
ESI: 53
PI: —
Prominence: 80

Open the case

Timeline

2015-05-20 · amplificationPolygon covers alien mind-control arcade documentary pitch
2017-09 · amplificationNeatorama highlights documentary on Polybius legend
2017-11 · amplificationPortland Monthly features Polybius as dangerous arcade myth
2025 · mutationNew lore blogs and deep-dive posts retell Portland 1981 myth

Next: facts →