Blizzard have announced that their Warcraft-themed virtual trading card game,  Hearthstone: Heroes of Warcraft – currently in a closed, invite-only beta – will soon be available to all; as the game enters an open beta some time next month.

Battle.net players interesting in trying out the game before its official launch will be able to login, download and experience the game in its current early form starting December 2013.

Blizzard also today announced that the game is also planned to have iPhone and Android versions, allowing a similar game experience in smartphone or tablet form. A release is due in early 2014.