Missed the pants-wetting experience of P.T. when it was available on the PS4? Well, if you don't mind a 1GB download, you can experience for the first time (or again, if you have the colonic fortitude), in this almost-complete recreation, made from data-mined assets.
The work of a fellow by the handle "Qimsar", PT for PC is "100 per cent playable" as long as you don't mind a few absent animations.
Technically, it's still in a sort of testing phase, but other than that, it should be very faithful the original demo.
As Qimsar explains:
...this is a full port/remake (whatever you want to call it) of PT for PC. Through a little over a month of work, I was able to almost completely accurately bring over everything about the original game over to the Unreal Engine by studying speedruns of the game, regular no-commentary walkthroughs, and through my own copy of it on my PS4.
I've never played P.T. myself, but I did download the demo to grab a few screencaps. To say it is intense would be to sell it short. Heck, my palms are still clammy as I write this.
I reckon it's good to go as it is, however, there's no harm in waiting for version 1.0 (it's at 0.9 now), which should be available in a few days going from Qimsar's updates.