Blizzard's next game is HearthStone: Heroes of Warcraft, a free-to-play online collectible card game.

You can play as one of nine World of Warcraft classes, collect cards, and battle people online. It boasts 300+ cards, with five cards coming in each pack you earn or purchase. Duplicate cards can be disenchanted and turned into the exact new card you want.

Platforms announced are PC, Mac and iPad. Will release later this year.

You can sign up for the beta at the official website - here.