Deities are often worshipped collectively, based around a central domain. This is referred to as a faith. This collection of deities poses a certain alliance between them and between their followers, and may oppose itself to other faiths. Being the follower of a faith means holding valuing its central domain and one or more of its deities.

A faith spans across borders, but may be treated differently by the different Cultures and Religions.

Saints, Holy Orders, and Temples are usually tied to faiths.

A subset of a faith is called a sect, or at times a cult. They tend to be more devoted towards one of the faith's deities and may have a radically different interpretation of its tenets.