From publisher blurb:
Sovereign City is a guide to a campaign set in the flashy and diverse 1980’s – at the end of the Silver Age of comics and leading into the Bronze Age. It was the decade of a new world order, along with technological and cultural revolutions that have indelibly left their mark. It’s a great period for superheroes – the older heroes in their colourful costumes vying with the newer, grungier heroes in long coats and black leather. However, with the information in this book, and with a little bit of work you could easily set your games in the Golden Age, Silver Age or whenever takes your fancy. Why not play games in every era? It’s up to you.
This isn’t a fully-functioning city environment; this guide is essentially collection of ideas, plots, adventure ideas, characters and scenarios centred on loosely-fleshed out city setting, to give it a sense of internal consistency. These plots tie into specific individuals or places within Sovereign City, although most can be untied from the setting and used in your own locations, if you don’t wish to base your campaign in the Great Lakes area (which is the location of Sovereign City).