GURPS Grimoire has around four hundred new spells and introduces two new Colleges, Gate and Tech.

GURPS Grimoire was written by Daniel U. Thibault and S. John Ross, and published by Steve Jackson Games.

Rick Swan reviewed GURPS Grimoire for Dragon magazine #210 (October 1994).

Animal, Elemental, Gate, Necromantic, and Sound are among the nearly two dozen categories; sample effects include rain of stones, accelerate time, and cloud vaulting.

A fascinating section of technological spells allows post-industrial mages to expel radioactive breath, create sentient computers, and speak with lawn mowers.