"Franklin is a subsector of independent worlds which, while more settled and established than Sequoyah or the frontier subsectors, is still not as tamed as Hub or Cascadia subsectors. Here you will find the alien artifacts of Tal'Kalares, the theocracy of Frankin, the military dictatorship of Minerva, the libertarian city-states of Bastiat, and the floating cities of Moffett."
Subsector Sourcebook 2: Franklin By John Watts, Kayla Lee, & Bonnie Dodson is one of those books you don't know that you need as a DM. Subsector Sourcebook 2: Franklin touches on the fringes of the Clement sector universe. This is one of those subsectors filled to the brim with opportunites for adventure. The book seriously is the outer edges of the interstellar map. And its filled with frontier edge planets & systems that will challenge even the most jaded of adventurers & spacers. These are the not quite wild systems that have lost touch with the rest of civilazation and like it that way. And it's this aspect that kicks up the Space Western & frontier aspect of the Fraklin sector.
The idea of the independant frontier is really well thoughtout with in the Franklin sector itself. The sector itself is boiling in some places & yet maintained in others we've got many different flavors with the alien artifacts of Tal'Kalares, the theocracy of Frankin, the military dictatorship of Minerva, the libertarian city-states of Bastiat, and the floating cities of Moffett. And they all offer opportunities for adventure serious deep long campaign adventures
There are plenty of places within the Franklin subsectors that can easily get PC's killed. And to put it into the terms of a Space Western. Franklin is the type of sub sector that represents the American indian lands where the PC's are the strangers within a strange land. Franklin is the type of a sub sector where the rules of law still apply but they might not be the laws that your PC's are familiar with. Franklin is where the deeper space expediation's get launched from.
Subsector Sourcebook 2: Franklin Third Edition By John Watts, Kayla Lee, & Bonnie Dodson For The Clement Sector, Cepheus Engine, & Your Old School 2d6 Science Fiction Rpg Campaigns Is Available Right Over Here