What is the relationship between TORG, Shatterzone and Masterbook?
Both Shatterzone and Masterbook base their mechanics on the mechanics of TORG, though there are enough changes that the games are not 100% compatible. Masterbook is West End Games’ new house system and all future game releases from them will use that system, including any possible sequel to TORG or revision of Shatterzone. The module “War’s End” (see next question) contains a set of TORG-Masterbook conversion rules but so far no one has bothered to review or comment upon them.