same thing here. It loads up the main title, the content and affiliation warnings and the apple loading screen loads up fully in a second but then it goes black. kept it open for about 25min and it was still black screen, cursor visible and moveable but reacts to nothing, randomly for 2-3 seconds turning into the loading cursors . no sound and unable to shut it down normally or exit thru windows button. had to force shut it down with f4 + alt. Gonna try the low specs version now to see if it will happen there too.
EDIT: low spec version seems to be working just fine! try to download that one if the normal one isnt working for you i guess until this problem is fixed
EDIT 2: the lowspecs at least for me works right up until the main character gets on the train, then its shuts down again. weird