As long as we're in copyright world, it ought to be structured as three separate parties:

1. Licensor, the company who makes the game.

2. Licensee, the person buying a digital copy of the game.

3. Safekeeper, Steam or another platform that stores the digital copy on behalf of Licensee. Similar to how depositories store securities and guarantee that they can be neither lost nor duplicated. For a separate fee perhaps.

Good luck. SKG got an official response from the EU that was basically "copyright law is a sacred cow, we can't change it"