I don't look up videos on the games I'm playing because they contain a ton of spoilers. Same thing with most trailers. And. I've never tried playing it blind but I would assume it be hard to navigate around. But not actually fight an enemy because all of them make a certain sound when doing a certain attack. So. Playing it blind on the first walk through would be hard. But the second time it be so much easier because you know te enemy sounds.

lol I meant without any kind of guidance. :) I was so lost at the beginning of Dark Souls. I broke down and watched some videos after about 4 hours of none stop death and mo progress. Once you understand all the mechanics of Dark Souls I wouldn't say it's easy but it's certainly not as hard.