From publisher blurb:
Take to the dangerous seas in the Golden Age of Piracy. The friendly harbors of the Caribbean no longer unconditionally welcome the Brethren of the Sea. Pirates must now seek their own fortune with no master to offer blessings. This is a perilous time for pirates. But the ocean is big. There is treasure to be taken and fortunes to be made.
Between the Devil & the Deep (BD&D) is a brutal and supernatural pirate TRPG set in the late 17th century Caribbean, made with the home-built SHAMUS RPG system, which is a hack of GUMSHOE.
This book contains:
SHAMUS rules for creating and playing pirate characters
3+ full-length scenarios
Settings, including detailed city descriptions for Havana and Port Royal
Rules for sandbox play
Ship-to-ship combat rules that emphasize roleplaying and reward player ingenuity
Lore Sheet rules for immersion and backstory
Adventure hooks for extend campaign play
Rules for PC use of Voodoo magic
Rules for PC created pirate havens
10+ pre-gen characters with portrait art