With Warcraft now taking the Hollywood route (although a new expansion is coming), Overwatch is proving it's more than capable of building a sizeable community. World of Warcraft reached 12 million players at its peak, but Blizzard's first ever shooter has the advantage of being available on PC, PlayStation 4 and Xbox One.

With players logging 500 million hours (71 of them mine) in the game so far, Blizzard is keen to build on that momentum by releasing new content throughout the year. Earlier this month, the game got its first new player -- a healing sniper called Ana -- but gauging from the easter eggs included in the new Summer Games release, we may soon learn who the mystery "Sombra" is.