What is the title of the Assassin's Creed game set mainly in the Caribbean Golden Age of Piracy?

Assassin's Creed IV: Black Flag is the series game set mainly in the Caribbean Golden Age of Piracy.

Released in 2013, Black Flag follows Edward Kenway, a Welsh privateer who becomes involved with both the Assassins and the Templars. Much of the game takes place at sea, where players sail the Jackdaw, raid ships, explore islands, and visit ports.

The story includes historical pirates such as Blackbeard, Calico Jack, and Anne Bonny. Its Caribbean setting includes locations based on Havana, Nassau, and Kingston, combining real historical figures with fictional plot elements.

The game is part of the Kenway family storyline but is set earlier than Assassin's Creed III. Assassin's Creed Rogue also emphasizes naval gameplay, but its North Atlantic setting and protagonist distinguish it from Black Flag.