Blizzard's Hearthstone: Heroes of Warcraft open beta test has gone live in Europe, following the North American launch on Wednesday.
To download the free-to-play card game users need to visit playhearthstone.com and click the 'Play Free Now' button.
Hearthstone was originally due to enter open beta in December, but the milestone was pushed into 2014 at the last minute.
Blizzard said in a blog post this week: "It's been a crazy past few months for all of us on the Hearthstone team.
"We announced Hearthstone at PAX East back in March, began the Closed Beta Test in August, had a blast at BlizzCon with the Innkeeper's Invitational, and we were excited to announce Android and iPhone support. Now we're ready to unleash the awesomeness of Hearthstone to you with Open Beta."