In Assassin's Creed IV: Black Flag, which region is the main open-world setting?

The Caribbean is the main open-world setting of Assassin's Creed IV: Black Flag.

The game follows Edward Kenway, a Welsh privateer who becomes involved with Assassins and Templars during the Golden Age of Piracy. Players sail the Jackdaw between islands, settlements, forts, and underwater locations across a large Caribbean map.

Important locations include Havana, Nassau, and Kingston. Each represents a different political and cultural environment within the game's early-eighteenth-century setting. Naval travel and ship combat are central systems, making the sea itself as important as the land-based cities.

Black Flag is sometimes described simply as a pirate game, but its story remains part of the Assassin's Creed mythology. Edward is also the father of Haytham Kenway and grandfather of Ratonhnhaké:ton, linking the game to Assassin's Creed III's Kenway family.