The Deities, High Sixteen, or Pantheon, are the generally-accepted set of Gods that created and preside over certain concepts in Mersia.

The Primaries are the first four gods generally credited with the physical creation of Mersia, and all life on Mersia.

Ix is known to be the most powerful of the deities, presiding over the concept of death. Ix is also credited with the initial creation of the reality that Mersia and the surrounding space inhabits.

Et is the second-most powerful of the deities, presiding over the passage of time. Et is also credited with creating the first language and writing system, which form the basis for Common Mersian Script.

Ro is the god of conflict, encompassing the ideal of resolution in dispute. Ro is credited with forming the basis of all known philosophy, as well as all mathematics.

Lu is the god of life, encompassing the ideals of form, beauty, and nature. Lu is credited with physically shaping the bodies of every living thing and imparting each with a soul. Unlike the other three Primary deities, Lu is known to speak informally with mortals, often, and is the reason much of the history of the deities is known at all. Ro and Lu are considered to be equals in power.

The secondaries are the next set of four gods, generally credited with the development of Mersia into a hospitable and bountiful world, and the creation of the physical laws which Mersia and the surrounding space obey.

Tul is the god of motion, encompassing the forces that govern reality. Tul is credited with the creation of the stars in the heavens, the moons, and the planets.