Thank you for clarifying but I still think this has the guac problem, which is the customer dictating “I think this is easy/cheap/free so you should just give it to me.” You don’t know what effort or cost is involved. There could be license entanglements. Running code that you don’t have the source for to be able to patch vulnerabilities in is a bad idea. This stuff should be negotiated voluntarily. I don’t see an arguments about market failure or externalities or monopolies to justify bringing in a regulation.

I use free and open source software and I understand that the license doesn’t entitle me to burden them to run and maintain a service for me indefinitely.

Pirates are the people who feel entitled to free stuff, even despite the wishes of the creator.

Just create a voluntary certification that a game or developer does whatever it is you want them to do and boycott anyone that doesn’t.

This is like a law that says guac should be free at Chipotle.