Hearthstone: Curse of Naxxramas has received an official release date from Blizzard. The first wing of the expansion for Hearthstone will be arriving on July 22nd on PC, Mac, and iPad.
The first portion, dubbed Arachnid Quarter, is the first of five wings of Curse of Naxxramas. Arachnid Quarter will be completely free to play for about a month, and anyone who plays it during the “launch event” will unlock the content permanently for free.
The other four wings of Naxxramas can be unlocked with either in-game currency, or real world cash. The other wings of Naxxramas will arrive staggered, and can be purchased for either 700 in-game gold or $6.99. Blizzard also revealed that these wings will be available as bundled content as well.
You can find out more about unlocking the other wings of Naxxramas here, where Blizzard detailed the pricing structure for the expansions, as well Heroic Mode and the bonuses and unlockables found in Hearthstone: Curse of Naxxramas.