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.[2] 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.
Samples taken from Desmond Miles' body in the moments after his death have enabled Abstergo Industries to continue to explore his genetic memories using the Animus' newfound cloud computing abilities. The unnamed player character is hired by Abstergo Entertainment to sift through the memories of Edward Kenway, an eighteenth-century pirate and the grandfather of Ratonhnhaké:ton. Ostensibly, this is to gather material for an Animus-powered interactive feature film, but in reality, Abstergo and the Templars are searching for the Observatory, a Precursor structure that allows the user to see through the eyes of a subject whose blood has been procured. As Kenway, the player must unravel a conspiracy between high-ranking Templars within the British, Spanish and French empires who, under the guise of cleaning up piracy in the Caribbean, have used their positions to locate the Sage - later identified as Bartholomew Roberts - who is the only man that can lead them to the Observatory, which they intend to use to spy on and blackmail world leaders. Kenway becomes an unwitting player in their plot when he kills a rogue Assassin planning to defect to the Templars and assumes his identity. His recklessness endangers the entire Assassins' Order, prompting him to pursue the Sage and the conspirators from the Yucatán Peninsula to Príncipe and the African coast.
Meanwhile, a band of notorious pirates - including Edward "Blackbeard" Thatch, Benjamin Hornigold and Charles Vane, among others - dream of a state where man is free to live beyond the reach of kings and rulers. Kenway is instrumental in realising this dream and a free "Pirate Republic" is established in the colony of Nassau. However, poor governance, a lack of an economy and an outbreak of disease bring the colony dangerously close to collapse. As the founders become deeply divided over every issue, Kenway tries to find a solution, but is too late to stop the Templars from taking advantage of the situation to consolidate their control over the Caribbean.
Eventually, Kenway and Roberts uncover the location of the Observatory and retrieve the artifact powering it, but Kenway is betrayed at the last moment. After a brief stint in prison for the crimes of piracy, Edward escapes with the aid of Ah Tabai, the Assassin Mentor, and elects to join their Order. Chasing down Roberts, Kenway retrieves the artifact and returns it to the Observatory, sealing it away for good. He is left facing an uncertain future with his newfound convictions until he receives a letter informing him of the passing of his wife and the imminent arrival of his hitherto unknown daughter, Jennifer Scott.
In the present day, the player is contacted by John, Abstergo Entertainment's information technology manager. John convinces the player that their employer knows more than they are telling, and encourages them to investigate in more detail. He arranges for the player to access the Animus' core, at which point Juno materialises into an incorporeal form. She reveals that although it was necessary to open her temple to avert disaster, the world was not ready for her, and she is unable to affect it or possess the player character as her agents intended. John is unmasked as the reincarnated form of the Sage and attempts to murder the player to cover up the failed attempt at resurrecting Juno, but is killed by Abstergo's security before he can do so. As Roberts, the Sage admits to Kenway that he owes no allegiance to the Assassins or the Templars and instead uses whoever he thinks represents his best chance of achieving his ends. With the Sage dead, the player is contacted by the Assassins as they continue their infiltration of Abstergo, but neither side is able to explain the Sage's presence or identify his followers.
Guys I tested this one myself.It works perfect.