1,900 Blizzard Workers Ratify First Union Contract With Microsoft After Two Years of Bargaining

Nearly 1,900 Blizzard Entertainment workers have voted to ratify their first union contract with parent company Microsoft after more than two years of bargaining, gaining new protections on generative AI, crediting, remote work, and layoffs while consolidating Blizzard's many smaller unions into three larger bargaining units.

The contract designates three bargaining groups for future negotiations between Blizzard unions and Microsoft, and will cover all three. One unit covers all of World of Warcraft as well as Blizzard QA and Hearthstone. The second group consists of the platform/technology team, customer support and localization, and the story and franchise development team. The third group includes both Diablo and Overwatch workers, all of which were previously separate units. For now, the signed contract will cover all of these groups until its expiration in four to five years, depending on the bargaining group.

The contract includes language on several hot-button industry issues. Its artificial intelligence article acknowledges that AI tools "may be useful in the game development process to support human judgment and creativity and that AI-assisted workflows remain subject to appropriate human control and review for accuracy and quality." But it also stipulates that any implementation of AI technology that would materially impact work performed by union employees must have its impacts bargained over before it can be implemented.

Other sections cover crediting, guaranteeing that current and former employees are credited by name in all games they work on, and remote work, designating certain roles as hybrid in-office and providing procedures for individuals to apply for their roles to be fully remote. The contract also contains a lengthy section on how layoffs may be conducted, including a required 60-day notice period or pay in lieu of notice, a guarantee of one week of severance for every six months of employment, and 14 months of recall rights. The contract guarantees successorship, meaning if Blizzard is ever acquired by another company, the contract would remain intact.

This marks the fourth contract signed between Microsoft and one of its owned game studios, following ZeniMax QA testers and Raven Software last year, and Blizzard QA workers earlier this year. Blizzard QA workers who already had a signed contract will be rolled into this new consolidated contract.

The consolidation of Blizzard's unions into three groups is designed to ease future bargaining, reducing the number of separate units Microsoft must negotiate with across the studio. The structure groups workers by franchise and function rather than by individual team, which had previously fragmented bargaining across the company.

The ratification follows a broader wave of unionization across Microsoft's game studios since the company's acquisition of Activision Blizzard. The ZeniMax QA unit and Raven Software both secured contracts in 2025, and Blizzard QA workers signed their own agreement earlier this year before being folded into this broader contract.

What remains to be seen is how the AI provisions will operate in practice, since the contract's language leaves room for AI-assisted workflows while requiring bargaining over material impacts. The contract's four-to-five-year term means the three consolidated units will next negotiate with Microsoft in the early 2030s, barring any changes to the ownership of Blizzard before then.