In Assassin's Creed IV: Black Flag, Nassau serves as Edward Kenway's main base.
Nassau, on New Providence in the Bahamas, is one of the game's principal settlements and a major hub for Edward and his pirate allies. Players return there to obtain missions, upgrade the Jackdaw, interact with characters, and advance the story.
The game also features Havana and Kingston, which can be easy to confuse with Nassau because all three are important Caribbean locations. Havana is associated with the Spanish presence, while Kingston is a British colonial port. Nassau is especially connected with the pirate community and the idea of a self-governing pirate haven.
Historically, Nassau became strongly associated with piracy during the early eighteenth century. Black Flag uses that history as part of its setting while combining real places and figures with fictional characters and events.