Bad news for gamers outside the UK though, unfortunately. The game won't be out for another month. Even worse, it seems like the episodes might not be free for those not lucky enough to reside in the UK according to this message from the site:
"Outside the UK
If you live outside the UK, the first Adventure Game will be available to purchase in early July. We will have more information shortly on release dates and where you can buy them, so watch this space!"