I simply loved this game. It reminded me a lot of "We need to go deeper", but with a horror tone, instead of an adventurous one.
I loved the story told in pieces, I found myself wanting to know more about what was happening all the time.
I played it twice, reaching a depth of around 200m. I stopped there because I want to review as many submissions as possible. But I'll definitely go back to try and get to the bottom of this mystery (if there is one).
The sound direction seems perfect to me, everything matches, everything responds as expected.
Congratulations on the great game you crafted!