Gurps Chaos Magic

[Dalillama]

See if you can find a copy of Isaac Bonewitz' Authentic Thaumaturgy.

[Anaraxes]

Originally Posted by Wikipedia

Chaos magic teaches that the essence of magic is that perceptions are conditioned by beliefs, and that the world as we perceive it can be changed by deliberately changing those beliefs. Chaos magicians subsequently treat belief as a tool... From the beginning, chaos magic has had a tendency to draw on the symbolism of pop culture in addition to that of traditional magical systems; the rationale being that all symbol systems are equally arbitrary, and thus equally valid – the belief invested in them being the thing that matters.

That description reminds me quite a lot of the metaphysics for magic in Mage: the Ascension. The White Wolf system had a GURPS 3e adaptation, which in turn was the basis for the "Realm Magic" system in 4e Thaumatology (p188, filed under "Syntactic Magic"). Tuning the exact number and scope of the Realms and levels within would be an important worldbuilding task to get the flavor that you want.

[hal]

Originally Posted by Dalillama

See if you can find a copy of Isaac Bonewitz' Authentic Thaumaturgy.

For a low price, you too can own a copy from warehouse 23 - a digital copy that is.

;)

[Anaraxes]

Originally Posted by hal

For a low price, you too can own a copy from warehouse 23 - a digital copy that is.

By following this link, even.