Goblins vs Gnomes, the first full expansion to Hearthstone, will be released next week on December 9, Blizzard has announced.

Goblins vs Gnomes will dive into the deep engineering rivalry between the two races, and will add a new minion type, mechs.

The expansion set is coming to Windows, Mac, and iPad simultaneously.

Goblins vs Gnomes adds more than 120 new cards to Hearthstone. The cards can be purchased as packs, crafted with dust, or earned in the Arena.