Heritage of Dodec
The cosmology consists of the following planes:
- Dodec, a dodecahedronal world that is the home of the PCs, and where the campaign begins.
- The Feywild, a parallel, natural world from which the fey originate.
- The Shadowfell, a parallel, darker world, of darkness and decay.
- The Elemental Chaos, a roiling realm of the building blocks of matter.
- The Astral Sea, home of the gods.
- The Far Realm, origin of aberrations, and seldom, if ever travelled to by mortals.
For more information, check out the Manual of the Planes.