The Fate Freeport Companion

The Fate Freeport Companion is your mechanics supplement for using the Pirate's Guide to Freeport with the Fate Core System. So to maximize this sourcebook's utility, you'll probably want to have a few other books. For setting information, the Pirate's Guide to Freeport is ideal since it not only updates the Freeport setting, but it provides extensive detail about the city, people, environs, and much more. If you already have the original Freeport: The City of Adventure (2003) and other Freeport sourcebooks, those can help too, but be aware that some of the characters and
information in this book reference events that have occurred after the Succession Crisis, which hasn't yet been concluded in the older sourcebooks.

For rules, this Companion works with Fate Core, so you'll need a set of those rules. Other Fate rulebooks, such as the Fate System Toolkit, are useful but not necessary for play.