Jeff Koke has written at least 6 books. Their most popular book is GURPS Black Ops with 2 saves with an average rating of 3⭐.
GURPS Third Edition
1995 • 1 Reader
GURPS Third Edition
1995 • 1 Reader • 1
1992 • 1 Reader
GURPS World of Darkness
1994 • 1 Reader