I always like Marco Innocenti games, they usually guarantee some fun exploration, tricky puzzles and lots of complex backstory.
I also like random games where you wake up on a broken ship with amnesia (like Babel, Trisgaea, etc.).
So overall I was primed to like this. You wake up on a ship as a child and find out that there has been major damage to your underwater base. Huge rocks have broken in parts of the walls and the whole thing is flooded.
Overall, the backstory is slowly revealed in gruesome and disturbing detail. It pulls on a lot of old sci-fi tropes but does so in a relatively smooth way.
The puzzles were fun, but some more coding I think could be useful. Especially I think there should be a more clear response to (major spoiler) (Spoiler - click to show)shoot can and put splinter in rock to show that those two are reasonable actions, and just need a little change to make them better.