In Nomine

A contemporary fantasy role-playing game, in which the player characters are angels or demons acting in the world as the agents of either archangels or demon princes. The English-language version is based on an original game in French, and is published by Steve Jackson Games.

Steve Jackson Games also publishes the setting of In Nomine as a world-book for their general-purpose RPG, GURPS, under the title GURPS In Nomine.