Activision Blizzard, Inc. is an American video game holding company based in Santa Monica, California. Activision Blizzard currently includes five business units: Activision Publishing, Blizzard Entertainment, King, Major League Gaming, and Activision Blizzard Studios. Founded in July 2008 through the merger of Activision, Inc. and Vivendi Games, the company owns and operates additional subsidiary studios, as part of Activision Publishing, including Treyarch, Infinity Ward, and High Moon Studios. Among major intellectual properties produced by Activision Blizzard are Call of Duty, Crash Bandicoot, Guitar Hero, Tony Hawk's, Spyro, Skylanders, World of Warcraft, StarCraft, Diablo, Hearthstone, Heroes of the Storm, Overwatch, and Candy Crush Saga. Under Blizzard Entertainment, it invested in esports initiatives around several of its games, most notably Overwatch and Call of Duty. Activision Blizzard's titles have broken a number of release records. As of March 2018, it was the largest game company in the Americas and Europe in terms of revenue and market capitalization. Wikipedia