Uhhhh... no. Dark Souls is a series that is intentionally sadistic with its difficulty, often resorting to outright cheap and unfair challenges, and is therefore is a series aimed at a VERY niche audience. Zelda, on the other hand, is absolutely nothing like that. It's a fairly challenging, but relatively simple series that focuses on creativity and whimsy to appeal to appeal to a wide variety of audiences. Neither series should ever try to be like the other.