UK Competition and Markets Authority Prevents Microsoft’s Proposed Purchase of Activision Blizzard

The UK Competition and Markets Authority (CMA) formally blocked Microsoft’s proposed acquisition of Activision Blizzard in April 2023, citing significant concerns regarding the preservation of competition and innovation within the cloud gaming sector. While the regulator expressed no concerns regarding the impact of the merger on the traditional console gaming market, it concluded that the deal would grant Microsoft an unfair competitive advantage in the emerging cloud market.

The CMA’s analysis highlighted that Microsoft already maintains a dominant position, controlling an estimated 60% to 70% of global cloud gaming services, bolstered by its existing infrastructure in Windows and Azure. The regulator determined that acquiring major franchises such as Call of Duty, Overwatch, and World of Warcraft would provide Microsoft with a strong commercial incentive to restrict these titles to its own cloud platforms. Furthermore, the CMA rejected Microsoft’s proposed behavioral remedies—which included ten-year guarantees for product availability on competing platforms—arguing that such measures are insufficient and difficult to enforce in a rapidly evolving industry.

The decision represents a significant regulatory hurdle for the merger, which had previously faced opposition from the U.S. Federal Trade Commission. In response to the ruling, Microsoft announced its intention to appeal the decision, while Activision Blizzard expressed strong dissatisfaction, suggesting the outcome reflects a restrictive business environment in the UK. The case underscores the heightened scrutiny global regulators are applying to large-scale consolidation in the technology and gaming sectors, particularly as cloud-based distribution models continue to gain market share.