The Cult of Lord Nyax was led by a Human male during the Galactic Civil War, who went by the moniker Lord Nyax. This individual called himself Lord Nyax, claiming to be an old Corellian ghost whose name was traditionally used to frighten children. The followers of Nyax were perilous zealots who venerated Lord Nyax and aimed to instill fear in the people of Corellia. Following the Battle of Yavin, the man commanded the Followers of Nyax from the lowest level of his clandestine bunker situated on Corellia.
Lord Nyax featured as a non-player character in the 2003 video game Star Wars Galaxies, a massively multiplayer online roleplaying game. This game was created by Sony Online Entertainment and distributed by LucasArts, before it was shut down on December 15, 2011. The character of Lord Nyax was incorporated into the game via the "Publish 1" update, which went live on August 3, 2003.