Activision Blizzard has announced that online hero shooter Overwatch has topped 15 million players worldwide since its launch in late May. The figure consists of "box and digital sales, internet game room players and multi-user console households".

Overwatch's official Twitter account confirmed the news, later detailed in a press release from the publisher. The news comes as Blizzard announced the first Overwatch World Cup, an eSports event to take place at the BlizzCon convention in California this November.

Blizzard was also celebrating success in China, where Overwatch became "the fastest-selling PC game in the market's history" topping the record set by fellow Blizzard title Diablo 3. Overwtach is also the number one game in Korean Internet Game Rooms – popular venues where people gather to play games.

The success helped Blizzard register its biggest ever quarterly online player count, with 33 million players across its many titles – including World of Warcraft, Starcraft 2, Diablo 3, Heroes of the Storm, Hearthstone and Overwatch.

Overwatch launched on PS4, Xbox One and PC on 24 May to wide acclaim. In our review we called it an "instant classic".

"Fun, accessible and extremely well-made. It's a shooter as much for those pledge their lives to online play, as those chiefly interested in the occasional fun foray."

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