I've been playing Bloodborne every evening for the last week or so, and it is tremendous. It's the only game that minor spoiler has ever gotten Lovecraftian horror correct in a really convincing way. The tone is pretty much one hundred percent on target.

I'd love a couple of my cosmic-horror-loving friends to play it, but it is fucking hard. I'm not sure they'd make it to the first boss, to say nothing of past it and the next however many there are.

As someone else points out, it may unfeasible for you to get a copy of your own (it's a PS4 exclusive), so you can of course watch others play - but seriously, it's not the same thing. Creeping around corners waiting for an ambush, inspecting hideous statues, hearing the slither of some nearby yet hidden hostile creature - the mindset you enter while playing is important to the consumption of the content. Watching another play, you don't quite have that. If at all possible, don't watch, just wait for your chance to play it - outside of Dark Souls and to some extent its prequel and sequel, it's pretty much a one-of-a-kind experience.