I prime example of other software this would have benefited is AutoCAD.

People who refused the conversion to a subscription, and maintained their "lifetime" licenses, where shut down after a couple of years.

Or they could just demonstrate that they have an offline play capability right from the moment they sell it.

Now they want more.

Handing over a standalone server to the public is a massive engineering, financial, and legal headache. Modern multiplayer games rarely run on a single isolated program. They rely on a huge network of interconnected cloud microservices.

A single match might require separate proprietary systems for matchmaking, player inventories, anti cheat, metrics tracking, and database management. Many of those come with licenses that don't allow you to just give away the code for free.

Disentangling the actual game logic from these third party platforms like AWS or Epic Online Services requires months of rewriting code. At that point you're basically re-inventing the wheel on so many technologies that your costs go up exponentially.

Games are rarely built entirely from scratch by a single company and are usually packed with licensed third party software like proprietary network code, commercial physics engines, or specific anti cheat software. Because the studio doesn't own the rights to distribute these proprietary tools to the public for free then releasing a standalone server forces them to spend extensive legal and development hours stripping out the restricted code and replacing it with open source alternatives.

Releasing server code also exposes the inner workings of the company's technology. If a studio uses the same proprietary engine or backend framework for their active money making games then releasing the server code for a dead game essentially hands hackers and competitors a roadmap to exploit their current profitable titles.

Lots of clearly needed specific laws. Europe is fine too, but they err on the side of caution and smother actual innovation.

Which is interesting because the Silicon Valley companies themselves incorporate in DW anyways, so it seems to be a separate consumer led legal trend.

But in this case, even the best-case outcome is extremely dumb. Companies are forced to expend resources just so a few niche hobbyists are not inconvenienced. And there will be side effects, ultimately including geo-fencing of games to exclude California. It's a big market, but you can't make up for a net loss with volume.

I would assume if that law passed the simplest compliance would just be to charge subscriptions and stop selling games directly. It seems like doing that would comply with that law without requiring much to change?