RIFTS

From the web:

This is the Regular Edition of the Rifts RolePlaying Core book.

Rifts is a multi-genre role-playing game that captures the elements of magic and the supernatural along with science fiction and high technology. It spans countless dimensions making anything and everything possible. Players are limited only by their imaginations! Rifts is a complete, role-playing game that can stand alone or be combined with characters and elements from the entire Palladium Megaverse®. Players can easily bring in characters from Heroes Unlimited™, Robotech®, Nightbane™, RECON®, Mystic China, The Palladium Fantasy RPG, or any of Palladium's RPGs.