Neverwinter: The Year of Deep Water Drifting
The pirates of the Sword Coast are reportedly organised under a single flag and a single leader.
The threat of a Pirate King horrifies all of the powers of the Sword Coast.
The lair of the Tidescourge Pirates is reportedly a giant sargasso (essentially floating seaweed) sea containing numerous wrecked ships. The wrecks serve as homes for the pirates while the power of the Bitch Queen keeps bad weather away.