From the publisher's site:
It is twenty years after the end of the global wars. Our world lies in ruin. Once-great cities are now nothing more than shattered hulks populated with bioengineered soldiers, giant rats, and rogue robots. This is the world of Rubble & Ruin, a setting inspired by the classic post-apocalyptic fiction of the 1970's and 80's, where players take the role of prospectors searching the rubble for surviving technology.
Here you'll find a description of the ruined city and its denizens, a bestiary, information on hostile elements, common trade goods, and sample gangs. Character generation includes six cultures, seven new races, and a section for biomodifications, cybernetics, nano-psionics, and dozens of new failings. Spot Rules for barter, firearms, the building of and fighting from cars, and the prospector’s best friend; the common dog. Also includes two full-length adventures.