Hearthstone is an upcoming online trading card game being developed by Blizzard. Currently in closed beta, a new patch has been released that comes with a list of fixes, a level cap increase, and even a new crafting interface. There was however a beta wipe.
All progress has been wiped and in-game purchases refunded to players, Blizzard stated there should be no more wipes. The new patch allows players to unlock more cards and even balanced some of the classes. More players are being invited to the beta.