Liked the atmosphere! The game itself leaves you to your own devices, which is good, but maybe a just little explanation would have been nice. The movement wasn't bad, but I found that the mouse look moves too abruptly. I agree with SplitHare in that I didn't know what the water was at first, it seemed more like smoke or fog, but I figured it out after my first run lol.
Overall though, it was interesting and fun to play! Good job!