I supported the Kickstarter project with $20, and they recently announced that you can change your key to Steam. I only want the game on Steam, nowhere else, and would like to change it as soon as possible. Any information on when you will be able to convert your key so I can put it on Steam and stop worrying about it?
Since you got the package for the release version you will probably have to wait till the game is released, which will probably happen around December.