It definitely reminds me of Limbo, another dark, monochrome-ish, eerie and somewhat gory platformer. The art style is slightly different, though. Silt seems to exhibit more characteristics of hand-drawn art that looks really lovely when we observe the details from your screenshots.

I'm not sure if I want to wishlist this, because although it looks interesting, I don't really think I love horror-themed games. But on the other hand, the art is tempting...