Blizzard Entertainment develops and publishes video games. They have released many popular video games and video game series, including Warcraft, Starcraft, Diablo, World of Warcraft, Hearthstone, Heroes of the Storm, and Overwatch.
Blizzard Entertainment was founded in 1991 as Silicon & Synapse. In 1993 it was renamed to Chaos Studios, then in 1994 it was renamed to Blizzard Entertainment. In 2000, the company was acquired by Vivendi, and in 2008 Vivendi Games merged with Activision to create Activision Blizzard.