Pass, no idea. There appears to be a European Court of Justice ruling saying that you are entitled to sell individual pieces of software and Steam cannot stop you from doing so, ie their EULA is invalid in this regard.

But I am not aware about any legislation which would force them to create a mechanism for you to do so. I have only googled the entire thing out of curiosity.

I guess it is easier with GoG games, you can just copy them to someone else’s pc, delete from your machine and it is sorted, someone else can use them.

https://www.eurogamer.net/eu-rules-publishers-cannot-stop-you-reselling-your-downloaded-games#comments

The Court said the exclusive right of distribution of a copy of a computer program covered by the license is “exhausted on its first sale”.

The ruling means that gamers in European Union member states are free to sell their downloaded games, whether they’re from Steam, Origin or another digital platform - no matter what End User License Agreement has been signed.

The ruling continues: “Therefore, even if the licence agreement prohibits a further transfer, the rightholder can no longer oppose the resale of that copy.”

And then

https://game8.co/articles/latest/steam-gog-and-others-must-allow-reselling-of-downloaded-games-in-eu

What was the dream of the cone? To become a giant butt plug?