Wars of Ruhlana
Wars of Ruhlana is a D&D 3.5 campaign that occurs primarily in the plane known as Ruhlana (a separate dimension located in the astral sea). Ruhlana is the only dimension in which the Creator Diety (known there as Railin) has revaealed himself. (See the Account of Creation)
Wars of Ruhlana allows all SRD classes and some homebrew classes (at the DM’s discression).