This was awesome. When I played it, it was night, and everyone else was sleeping. So it was all dark and quiet. Then I start up this game, and notices it's in full screen, and very dark and creepy. Perfect match. I was also pretty tired, and had a slight headache. That made me almost feel like I was that guy! I mean, it fitted perfectly to what happened to him in the beginning. Even though I ragequit once because I thought the game was going too slow, and one of the last screens was way too long and I died at the very end right before the next screen, I resumed the game the night after (when I felt the same things).
What I want to say is that this game gave me an experience I really doubt I will ever forget. It was awesome! I can really recommend everyone to do the exact same as me, play it at late night (with fullscreen).
However, I had predicted the ending since the second or third screen. I was maybe not 100% sure, but I absolutely thought something similar would happen...
My first thought was that it was a lanternfish. Yes, I swear! But that sounded a bit unlikely, so I started considering other possibilities. I came to the conclusion that it probably was a lantern fish, or something similar. In short, it would lure me to some kind of creature who would eat me, or maybe some other thing? Like a dark power who would consume me. Well, that was my thoughts. But I also considered the possibility of the beacon "saving" me, ofcourse, but didn't find it very likely. It would ruin the game, kinda.