Great game, art and music are great. I didn't really enjoy the controls but I think that's subjective.

Blown away by the art, music, and sound effects, creating a great atmosphere, putting great emphasis on the otherworldliness of the cave. Controls are a little bit confusing at first, and it gets hard navigating the caves when the screen darkness, but I guess that's part of the challenge! Overall cool experience! 

Amazing visuals and music, with pretty fun gameplay. Seik is right that while the screen darkening may be a neat touch, it might be a case of it being a cosmetic feature that is a detriment to gameplay, since its when you're almost out that you need to see where you are the most. But maybe that's what you were going for - if it was, you executed on it well, but not my taste I guess. Overall, amazing entry!!

First off: Music, sounds, and art fit together so perfectly! I love the atmosphere and the ambiance. The only real "problem" I have with it is that when you start to run out of oxygen, it gets really hard to see where you need to go. (still, the screen darkening was a great touch, and fit really well with the heartbeat to show when you are starting to run low.)