Daanvi

In the Eberron campaign setting for the Dungeons & Dragons fantasy role-playing game, Daanvi, the Perfect Order, is one of the thirteen planes in metaphysical orbit about the world of Eberron itself.

Daanvi is a realm of absolute, ideal order - strongly permeated with the multiversal force of Law. Its primary inhabitants are the ant-like formians and the mechanical inevitables.

Daanvi's orbit brings it particularly close - coterminous - to the Material Plane in which the world of Eberron is located one century out of four, and takes it particularly remote from the Material Plane for an equal length of time starting one century after the end of a coterminous period.