Over 450 game developers at Blizzard, a subsidiary of Microsoft, have cast ballots supporting unionization with the Communications Workers of America (CWA). The decision impacts teams working on the Diablo franchise and follows months of organizing efforts.

According to CWA representatives, these employees will align with regional chapters: Irvine’s Local 9510, Albany’s Local 1118, and Austin’s Local 6215. Microsoft, adhering to earlier commitments tied to its Activision Blizzard acquisition, has formally acknowledged the newly formed union.

Despite this progress, tensions persist between labor organizers and corporate leadership. Microsoft’s track record reveals mixed responses to worker mobilization—the ZeniMax QA team, for instance, endured prolonged negotiations and a strike before securing their first contract after two years. Other groups within the company continue advocating for agreements.

Kelly Yeo, a Diablo producer, shared, “Layoffs have left our teams grappling with constant uncertainty. Unionizing isn’t just about us—it’s part of a broader push for stability in this industry.” Similarly, senior software engineer Nav Bhatti noted, “We’re reclaiming agency in a field that often exploits our dedication. Choosing to unionize means demanding fair treatment.”

This marks the third major union drive at Blizzard following similar actions by Overwatch 2 staff. With reports of ongoing challenges in Microsoft’s workplace culture, analysts predict further labor organizing as employees seek improved protections and equity.