Games maker Blizzard Entertainment, currently a subsidiary of Activision Blizzard, has just posted a downloadable beta of its upcoming Warcraft-themed free-to-play strategy card game, titled Hearthstone: Heroes of Warcraft. It's been in closed beta since August of last year.
The open beta is now available to Mac and Windows users in North America through the Blizzard website. The game is about lively duels that "evoke the spirit of a friendly match played beside a crackling tavern fire"...