Crime City is an amalgmation of various cities where street level costumed crime fighters battle against equally garish villlains. It seems to be a city in an unspecified part of the East Coast. It doesn’t even seem to have a proper name, inhabitants generally just call it “The City”. It is created by fictional leakage. Specifically it embodies the tropes of the “masked avenger” crime fighting genre. As a result the technolgical level also seems a mix of eras from the 1930’s to the modern era. Cars from the 40s and 50s prowl the streets where pedestrians chat on cell phones. The architecture is very art Deco but some buildings are ultra-modern.
The City is the entire recursion. Most of the citizens talk as if it is part of The USA, but eventually every road dead ends, trying to leave the city by boat results in getting turned around in the fog (though many ships just disappear and re-appear) and there is nothing beyond the city itself. Though the reality creates the illusion of being part of a larger nation. There is an FBI field office that will occasionally get orders from Washington, for instance.
Crime is an everyday part of life in The City. Kidnappings, bank robberies and worse seem to be an almost every day part of life. The police force and DA’s office are corrupt, though occasionally a lone cop or official will try to clean it up.
The situation is ameliorated by the presence of costumed vigilantes. Masked mystery men who, often because crime has touched their lives somehow, choose to put on a mask and protect the citizens. It is the sort of place that a silent defender can be the hero The City deserves, even if he isn’t the hero The City needs right now. These heroes tend to be Quickened and Vectors are extremely common.