I read the original version of the Vampire Kingdoms over 20 years ago and it was interesting, had a few fun classes, items and NPCs as well as the vampire and ways to combat them in Rifts earth. It never was my favorite but after reading several of the revised books I thought I would give this a go. The other revised books have additional pages, new weapons, expanded data on the setting, new OCC classes, and little tweaks for additional clarity. In short, I though every other revision was a serious improvement. This book had all the things I liked removed from it. No information on the Yucatan peninsula, many of the races were removed, and nothing new story wise really grabbed my attention. If I was to advise a potential buyer of this product I would say buy the original edition that is also on DTRPG.