http://store.steampowered.com/app/313080/
Steam nur über Umweg:
1. Go to Playfield (https://playfield.io)
2. Create an account (it’s super easy, you can use your FB/Twitter/Google logins or signup via email)
3. Click on your User Profile Menu (upper right hand corner), select “Activate Key” and type in your The Masterplan key
4. The Masterplan will be added to your Playfield Library, from where you can get the Steam key and/or download the DRM-free version!