Octarius is the central Ork world of the Ork Empire of Octarius in the Octarius system. It is a mountain world that has a single mega-continent with large snowy peaks. The shanty capital of the planet’s ruler, the Overfiend of Octarius is known as Gargates.
Octarius is embroiled in war against Hive Fleet Leviathan, which was directed to the Octarius Sector by the radical actions of Inquisitor Kryptman.