Records-shattering release of 'Overwatch' leads big quarter for Activision Blizzard

With more than 15 million players and 500 million hours played, the record-shattering release of team shooting game “Overwatch” lifted Activision Blizzard Inc. to its best ever second-quarter sales.

“Overwatch” is on its way to being the Santa Monica video game maker’s most successful launch ever,...