This game had a very open ended conclusion in both endings where we didn't get to see how the mystery that has been brewing from the start resolves itself.
And that's the beauty of it.
The whole time you get an almost ethereal feeling from the setting to the events that occur, as if you're watching someone have a warped dream about a fond memory. The themes and symbolism becoming more important than the plot. I'm sure there is a lot of subtext I'm too dumb to analyze on my own. But personally I'm a sucker for thalassophobia and fucked up things in the ocean and I got chills by the end, the scale being well transmitted even through a simple artstyle.
10/10, lowkey best SIG game to me.