The takeover, the biggest of its kind in the history of gaming, has been approved by UK regulators.
Microsoft 's revised offer to buy Call of Duty-maker Activision Blizzard has been approved by UK regulators.
The Competition Markets Authority (CMA) said the updated bid had addressed concerns, after it blocked the original $69bn (£59bn) deal in April.
Microsoft will hand the rights to distribute Activision's games on consoles and PCs over the cloud to France's Ubisoft.
The CMA said this would "preserve competitive prices".