Blizzard has confirmed work on its first ever free-to-play title.
The project, called HearthStone: Heroes of Warcraft, is an online collectable card game.
Players place cards on a virtual table in a turn-taking style strategy game, though Blizzard said it is attempting to create a game that is "far more fluid than other CCGs out there".
Different variety packs of virtual cards will be available to purchase. A Blizzard spokesperson said that the studio was considering packs to cost "around $1 per pack".
The game has been put together by a new internal team within Blizzard, formed of 15 developers.
No release date was set.
Blizzard's work on a free-to-play game was revealed in February last year.
[Update: Blizzard has since revealed that HearthStone will be a cross-platform game coming to iPad, PC and Mac.
"We've always loved collectible card games at Blizzard, so it's been exciting to bring everything we love about the genre to life in Hearthstone," said company cief executive Mike Morhaime.
"We're putting a lot of focus into creating a fun new game that's easy to pick up and play, but also has a lot of depth. We can't wait to share it with everyone." Update ends]