context: Blizzard Entertainment is a video game developer in the United States. When it was first founded on February 8, 1991, under the name Silicon & Synapse, three members from UCLA, Michael Moheim, Alan Addham and Frank Pearce, founded the company. The current official name is Activision Blizzard. It is based in the Irvine, California area. At the time of establishment, it focused on developing game ports for other game development studios, but started developing games in 1993. Games developed around this time include Rock n 'Roll Racing and The Lost Viking. After changing to Blizzard Entertainment in 1994, he became a subsidiary of Davidson & Associates and later moved to Vivendi. Soon after, the first hit, Warcraft: Orcs and Humans, was released. Since then, he has released hits such as Warcraft, StarCraft, Diablo Series and MMORPG World of Warcraft. The latest releases were beta-tested before the release of Diablo 3, World of Warcraft's fifth expansion pack, Draenor's Warlord, Hearthstone, and Overwatch. In the meantime, Blizzard supported Mac OS or OS X in other games, but not Overwatch. On January 9, 2015, the Overwatch trademark registration failed due to the North American Patent Office's policy that the same name trademark could not be used because of a smartphone application released by Inobis Lab. Was done.
question: What company is Warcraft made by?
answers.text: Blizzard Entertainment