The UK regulator has summarised six meetings it held with Xbox rivals as part of its investigation into the proposed Activision Blizzard acquisition.
The six companies are either an existing competitor or a potential competitor in "console gaming services or cloud gaming services," the CMA explained.
Out of those six companies, half of them believe that if Microsoft was to complete its acquisition of Activision Blizzard, it would harm competition. Two companies didn't believe it would cause harm, while a third said it was too early to make that call.
source https://www.gamesindustry.biz/three-xbox-rivals-believe-the-activision-blizzard-merger-would-harm-competition
