I pretty much agree with what everyone else is saying
Audio and visuals, especially the static effect are amazing, give it a great eerie vibe to the game
Also thought the use of glowing mushrooms to indicate pickups was good creatively, it naturally lead the player over there instead of forcing them.
Issues i had were that the compass at the top seemed somewhat unclear as to whether or not it was pointing to anything? I ended up following it and just found nothing
Also its unclear what to do with the parts once you pick them up, i went back to the crashed sub but couldn't seem to do anything with them?