Infinigrad roils over a corrupted and mutated plane of intersecting multiverses, a situation brought on by wanton abuse of magically weaponry during the Alleyway Conflagration.
After long eons of fighting, The Law was introduced. The Law is a curse that prevents any of The Guilds directly raising arms against one another.
Only The Adventurers, those vagabonds who exist outside the normal strata of The City's social spheres, and its infinite network of shady alliances, can truly claim non-affiliation with any of The Guilds. Only they can keep the century long conflict going.
The Blasphemous Roster is a resource for generating the untold myriad of guilds that inhabit and infect The City and the blueprints of endless clandestine missions that The Guilds need doing by unlucky Guild Dogs. Their names, their expertise, the way they operate and the way they look are all festering within this very tome, ready to crawl out and continue secretly enacting their eon long vendettas against one another.