With Assassin's Creed Mirage just around the corner, it's worth looking back at one of the most critically acclaimed Assassin's Creed games of all time, Assassin's Creed IV: Black Flag, and the long-lasting effect it has had on the AC franchise and the gaming industry writ large. Black Flag was a brand-new experience for many gamers—even those already familiar with the series—as it introduced a fresh take on action-adventure games and set a new standard for the open-world genre.
Source：https://www.cbr.com/how-black-flag-inspired-assassins-creeds-open-world-trend/
