So, I liked where this was going, including the story and the aesthetic. I was looking forward to a big turn in the narrative (which, judging from the comments, there is) but I just couldn't get past the dark cave part. It could just be my poor skill, but it seemed like I just didn't have enough time to react given how small the field of vision is. If it was meant to be challenging, you succeeded!
Anyway, overall I think you did a good job, and maybe I'll try again sometime.