Pillars of Eternity II: Deadfire - Deck of Many Things

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

The Deck of Many Things DLC adds a new merchant vessel that sails the high the Deadfire Archipelago. Laden with exotic items from across the far corners of Eora, the Deck of Many Things is open for business, but enterprising buccaneers can try to take the ship’s bounty by force.

Included in this DLC:
• Adds a new NPC ship ‘the Deck of Many Things’ to the world map.
• Purchase a wide array of items, or test your mettle against the ship’s defenders, and seize the treasures maliciously.