Michael S. Schiffer
Michael S. Schiffer has written at least 1 book. Their most popular book is GURPS Alternate Earths 2 with 2 saves with an average rating of 1⭐.
91 GURPS Third Edition
GURPS Alternate Earths 2
ByKenneth Hite,Craig Neumeier,+1 more
1999 • 2 Readers • 128 pages • 1