The expansion will hit the game this winter on the PC and iPad.

Hearthstone: Heroes of Warcraft will launch its very first expansion this winter - Goblins vs Gnomes! Announced at BlizzCon yesterday evening, the expansion will introduce over 120 new goblin and gnome themed cards that players can add to their collection.

Goblins vs Gnomes immerses Hearthstone players in an epic rivalry between goblin engineers and their gnomish counterparts. Though wildly brilliant, these pint-size tinkerers don’t always have the upper hand on the mechanical contraptions they create, and the results can be wonderfully unpredictable. The new cards coming in the expansion are filled with wild and wacky inventions as well as some faces that will be familiar to World of Warcraft and Hearthstone players.

“Goblins vs Gnomes is going to turn Hearthstone on its head ,” said Mike Morhaime, CEO and cofounder of Blizzard Entertainment. “It introduces a ton of new cards with all-new options for decks and strategies, and we can’t wait to see all the crazy combinations players come up with.”

The Goblins vs Gnomes card packs will be winnable in the game's Arena mode as well as being purchasable with either in-game gold or real money. Pricing information has not been released yet, but players can expect to see the expansion drop sometime in December. If you want to watch the entire reveal, check out the BlizzCon Opening Ceremony recording!

Ann "Cyliena" Hosler, Managing Editor