Blizzard Entertainment has reportedly emerged as Xbox’s best-performing first-party studio and Overwatch & Diablo 4 have played a major part in it. Blizzard Sees Major #Overwatch Growth 📈Overwatch recently delivered its strongest quarter since 2022, as Blizzard achieved its first back-to-back years of growth since the game launched in 2016.Blizzard also topped Xbox's studios division. One of the biggest contributors to Blizzard success is none other than their hero shooter live service game, Overwatch. Why is Blizzard considered Xbox’s top-performing studio? According to reports, Blizzard exceeded Microsoft’s FY26 projections, making it the best-performing studio within Xbox’s first-party portfolio.