GURPS In Nomine involves powerful angels and demons as player characters.

[1]: 112 It contains conversion material for the core rules as well as selected supplemental rules, and is actually longer than the original book by sixteen pages, or one signature.

The conversion guidelines in the back can convert both to and from GURPS and the original system.

The book was written by Elizabeth McCoy and Walter Milliken.

[1]: 110 This role-playing game related article is a stub.