Activision Blizzard is a video game holding company that develops, publishes, and distributes blockbuster franchises including Call of Duty, World of Warcraft, Overwatch, and Candy Crush Saga through subsidiaries like Activision, Blizzard Entertainment, King, and studios such as Sledgehammer Games. It operates as a global leader in interactive entertainment across consoles, PC, and mobile platforms. Following its 2023 acquisition by Microsoft, it ranks among the largest gaming companies by revenue and player base.