To install on steam you need to downgrade FO4. Theres an app that does it but I have huge reservations about an app that wants you to login with your steam username and pwd !
I grabbed the GOG version instead.
However, didnt go that well really. Glossing over it starts you off w/o a weapon then makes you fight creatures that give you a lurgy that kills you in seconds.. got past that onto a train. And it crashes.
After some fiddling I got past that... got a little further and another crash.
Its an impressive feat what they have done for sure but I think theres a few kinks need ironing out yet
