Hearthstone: Heroes of Warcraft to add cards with PvE Adventures

Hearthstone: Heroes of Warcraft developer Blizzard Entertainment plans to expand the collectible card game's deck by introducing Adventures, lead designer Eric Dodds revealed at BlizzCon 2013 today.

During the Hearthstone Fireside Chat panel, Dodds said an Adventure will be a "focused, single-player, PvE experience" where players will face off against a boss or series of bosses and earn cards associated with the Adventure. He expects there to be 20-30 cards associated with each.

"They are going to be cards that absolutely change the meta game, because we're paying attention to that a lot and will make sure that these cards are going to shift the meta game," Dodds said, "but they're not going to be cards that specifically have crazy new mechanics in them just yet. Those we're saving for the expansion side."

Though he said Blizzard is "still figuring our way," he said players could expect to see a series of alternating Adventures and expansions.

During the panel, production director Jason Chayes outlined other changes headed to Hearthstone through a a series of upcoming patches. Blizzard will be changing and rebalancing cards some cards as well as making changes to ranked play by adding a new ranked mode with one-month seasons.

BlizzCon 2013 is underway at the Anaheim Convention Center, and Polygon is on hand to bring you all the news. For more on Hearthstone, which is heading to Android and iPhone, check out Polygon's hands-on impressions from the beta.