Incredible game! I love the climbing mechanic and additionally with the shovel. It's quite hard at the start, but it gets really fun once you've got used to the controls.
I had to play it a second time because I realized the first time I couldnt pay attention to the game itself at all. I had to use all my brainpower on the moving xD But I love the dark, moody, mysterious look, and the dust particles flying through the cave. You've done a great job!