Depends on how you play Dark Souls. By the time I started playing, I've already seen more than half of the game. I knew what all the stats meant, and researched what type of weapons/magic I wanted to use and where to get them. I didn't get the "traditional" Dark Souls experience, but I do think I was able to get the most out of my time spent. You can't spoil everything just by watching. Dark Souls is still a fun game to play and master.