I don't understand why so many people here are celebrating.
This isn't over just because the CMA announced to block the acquisition.
Microsoft and Activision-Blizzard are going to appeal the CMA's decision. And because this decision to block the acquisition makes no sense (Microsoft already explained it) the CAT (Competition Appeal Tribunal) will save the deal.
The CAT will tell the CMA to let this deal pass because it makes no sense to block it. Microsoft will give them more informations about the cloud gaming market and in the end.... the CMA will approve the acquisition.
Just wait a few more weeks or months. This deal is as good as done.
90% chance it will go through.
The CAT can't do that you prat