Pathfinder is a science-fiction campaign setting for GURPS. It is set in the time after a galaxy-spanning war that threw back humanity's technology by several hundred years. Most planets are depleted of their resources, so new space ships have to be built from old wrecks. Humanity slowly tries to find its way out of this new Dark Age.
This book contains:
Planet listings of the known territory with background information
Cults and organizations
Mule types and upgrades (spacecraft used to tow or disassemble wrecks)