First off, download the game in Steam.
When the "Bloodline 2" is installed open the Software Center and search for ProtonUp-qt and install it.
In ProtonUp click "Add Version" and pick GE-Proton10-21.
After that click "Show Game List" and find Bloodline 2. Under compatible choose: GE-Proton10-21.
Now you're set to be a true vampire :wink:
