Technically yes, but only under very specific circumstances and from what i know you can't distribute or get a tool for it from the internet, as the distributor goes into a very dark gray area.
And its also not giving you the right to run your own server if necessary, its also not allowed to crack hardware for it.
It should be legal, it should also be legal to crack any no longer supported software and set up servers for it, but currently it isn't.
Breaking encryption is illegal in most countries, although nobody is actually abel to do something about it... Maybe Nintendo finds a way...
Where i live there are laws about what can be written in the tos, what cant and what is irrelevant to the tos (invalid statements).
However everyone with more than a wallnut brain knows that you don't own the game physically and that you basically get a license to download it with your account, steam isn't responsible for the game itself (servers being shut down) you can in 99,99% of cases still download the game from steam even without key servers or the servers necessary for the games online mode, steam distributes from their own servers.
hyper rattling
(I've read it... Its not even that long, oh and there are regulations about what is legal in there)
Rattling intensives
(its a joke, i make a Spooky joke. Its literally a thing that was always written in the TOS of steam and every other store. Technically you don't even own disk games as, when the key server is shut down they are looked forever, and there is no legal way to get around that.
The algorithm "encrypted" disks have master keys you can find online usually, they are however hardly encrypted.