Assassin's Creed IV:black flag  
Assassin's Creed IV: Black Flag is a 2013 historical action-adventure open world video game developed by Ubisoft Montreal and published by Ubisoft. It is the sixth major installment in the Assassin's Creed series, a sequel to 2012's Assassin's Creed III modern story and a prequel to its historical storyline.
It was released worldwide for the PlayStation 3 and Xbox 360 on October 29, 2013. The PlayStation 4 and Xbox One versions were also developed, and both versions have been announced as a launch title for both consoles. The Wii U version was delayed in Europe until November 22, 2013. A Microsoft Windows version was released on November 19, 2013 in North America and on November 22, 2013 in Europe.

Gameplay
The game features three main cities; Havana, Kingston, and Nassau, Bahamas, which reside under Spanish, British and pirate influence, respectively. The game also features 50 other "unique" locations to explore, with a 60/40 balance between land and naval exploration. Assassin's Creed IV has a more open world feel, with missions similar to those found in Assassin's Creed, as well as fewer restrictions for the player. The world opens up sooner in the game, as opposed to Assassin's Creed III, which had very scripted missions and did not give players freedom to explore until the game was well into its first act. The player will encounter jungles, forts, ruins and small villages and the world is being built to allow players much more freedom, such as allowing players to engage, board, and capture passing ships and swimming to nearby beaches in a seamless fashion. In addition, the hunting system has been retained from Assassin's Creed III, allowing the player to hunt on land, and fish in the water.
A new aspect in the game is the ship the player will captain, Jackdaw. The Jackdaw is upgradeable throughout the game, and is easily accessible to the player when needed. In addition, a new underwater component has been added. The player has access to a spyglass, allowing the examination of distant ships, along with their cargo and strength. It can also help determine if an island still has animals to hunt, treasures to find or high points to reach for synchronization. An updated form of the recruit system introduced in Assassin's Creed: Brotherhood has returned, allowing Edward to recruit crew members. While Kenway's crew will remain loyal to him, and can be promoted to captain acquired ships, they cannot assist in combat or perform long-range assassinations, as in previous games. Ubisoft removed this aspect of the brotherhood system, believing it allowed players to bypass tense and challenging scenarios too easily.
In the present day, at the offices of Abstergo Entertainment — a subsidiary of Abstergo Industries — in Montreal, Quebec, players will engage in modern day pirating through the exploring of Abstergo's offices, eavesdropping and hacking, all without combat. As well, various "hacking" games, similar to previous cluster and glyph puzzles, will be present, that will uncover secrets about Abstergo.
Multiplayer also returned, with new settings and game modes, though it is only land-based.