Cosmology

The universe is a vast and complicated thing. It is centered on the prime material plane, the plane we all know and love. Surrounding it are the six inner planes: The elemental planes of water, air, earth, and fire, as well as the positive and negative energy planes.

The primary transitive planes, which are used to access the outer planes, are the plane of shadow and the astral plane which connect to the evil aligned outer planes and good aligned outer planes respectively. The neutral aligned outer planes connect to both and often end up as battlegrounds in the unending war of good versus evil.

There is also the ethereal plane which is just out of phase and coterminus with the prime material.

Lastly, there are a near infinite number of demiplanes, many long forgotten and crafted by powerful spellcasters and fallen deities.