Hearthstone hits over 50 million registered players

Hearthstone: Heroes of Warcraft, Blizzard's wildly successful digital collectible card game based on the World of Warcraft universe, launched its latest expansion in Europe today.

With the release of the expansion, entitled Whispers of the Old Gods (click Here to learn more in our preview), it has also been announced that the game now has over 50 million registered players.

This shows a huge growth in the player base, as it was announced that there were <i>only</b> around 40 million players back in February of this year. This will no doubt be helped thanks to the release of the aforementioned expansion, which introduces over 100 brand new cards to the game, along with a slew of new modes and balance changes.

Hearthstone is a fun free-to-play game and it's available on PC, iOS, and Android.