The world of Primus is the realm upon which Archengeia's current tabletop roleplaying game is taking place. This world has two major continents, Dereth and Auburean, the Lost Continent. Primus is a mixed temperate world, with two moons that orbit high in its skies, and is home to a large number of different cultures and species. These include Elves, Lord Elves, Dwarves, Mites, Gnomes, Half-Elves, Fairies, Halflings, Trolls, Banderlings, Ogres, Orcs, Burun, Moarsmen, Sclavi, Lugians, Dericost, Lycanthropes, Drudges, Olthoi, Mosswarts, Kobolds, Gnolls, Goblins, Centaurs, and the ever enigmatic Tumerok. Recent developments have also shed light on two other species of which not everything is fully understood; the Scions and the Shadows.

All of known history goes back roughly 348 years, to what is now referred to as Year 0. Year 0 is the rough term for when known history began, with no written or verbal history dating back previous to it. The exact date of Year 0 is actually in question, as it was not until several years later that a calendar and timeline were established by The Order. It is known that history existed prior to Year 0, as cities and buildings and farms and other infrastructure existed, but there is no collective or individual memory amongst the common races prior to this time.