Duality (dungeon) - Destinypedia, the Destiny wiki
Destiny 2: Duality - Orcz.com, The Video Games Wiki
Duality Manipulation | The Codex Wiki | Fandom
Rune Cape of Duality (0 AC) - AQW
Duality - Grand Theft Wiki, the GTA wiki
Planetary Duality Arena - PvP at its finest! Wiki in comments : r/NoMansSkyTheGame
Gabriel Peyré on Twitter: "The polar of a set generalizes duality between polyhedra. It is to sets what Legendre-Fenchel duality is to functions. Gauges and indicators are interleaved by polarity and duality.