Hello everyone,
The game will not unlock and be playable until Monday, but your Steam keys are available now. Here is where you can get them:
IndieGameStand buyers
Your steam key has been added to your game wallet.
Humble store & direct buyers
Your steam key has been added to the game's download page in your humble library.
Groupees BAGB13 buyers
You can get your steam key via the humble store link that came with the bundle. If you have already claimed the humble link then you can get the key from your humble library.
Cheers!