Alethia is a planet in the goldilocks zone around a massive star in an unexplored universe in the "He Who Fights With Monsters" Multiverse.  

A world on the larger end of the spectrum, many times larger than Earth but with a comparable atmosphere and worldly biomes.  However, Alethia has a thinner than normal barrier between the material plane and the Astral allowing a significantly increased level of magic to saturate the world.  So saturated the worlds environments and creatures have adapted to the abundance of magic to produce some spectacular and deadly environments and creatures.  

The population of the world is no exception, they are infused with magic to the point that they’ve lost the ability to absorb the essences that manifest in their world.  Though the natives are unable to absorb essences, they are quite capable of ritual magic and much of their world’s technological advancements has been achieved through the lens of magic, ritual, and enchantment.

Though much of the life of the planet has adapted to survive in the high magic environment the gods intervened at some point in its history to create areas of relative safety from the powerful monsters manifesting across the world.

The Alethian Pantheon contains fourteen gods, each having built two Celestial Pillars.  Sites where the gods have erected massive magical pillars to attempt to regulate the fluctuating magic and control the manifestation of magical phenomenon.  The excess magic that would normally cause local manifestations is absorbed and funneled into pocket dimensions.  The absorbed energy fills these pocket dimensions with monsters and architecture designed and managed by the gods, which frequently take the form of dungeons.