Blizzard Entertainment is a video game development studio founded in 1991 by Michael Morhaime, Frank Pearce, and Allen Adham, headquartered in Irvine, California. Now owned by Microsoft as of October 2023, the company develops massively multiplayer and competitive games including World of Warcraft, Diablo, StarCraft, Overwatch, and Hearthstone, each with millions of active players. With approximately 11,000 employees across North America, Europe, and Asia, Blizzard ranks among the world's largest game developers. The company built enduring franchises that define gaming genres, though it navigated significant public workplace conduct investigations in 2021-2022, leading to executive changes and cultural reform efforts that continue under Microsoft's oversight.
Blizzard cultivates a game-first development culture emphasizing player experience and technical excellence, with long project cycles supporting complex multiplayer systems. The company attracted top creative and engineering talent through prestigious franchise work, though reported concerns about harassment, discrimination, and management accountability prompted structural reforms starting in 2021. As a Microsoft subsidiary undergoing integration, the studio is implementing new governance and workplace policies while managing stakeholder expectations across a global player base.
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