Is this game incomplete? I couldn't interact with the word search puzzle. There are no instructions. You don't even get a list of inputs. I spammed left click an E at the puzzle but nothing happens. Same with the big red button. Typing the words out also does nothing.
Do you lose if you run out of time? If so, it should be a count down, so you know how much time you have left. This creates anticipation and tension instead of confusion.
I wasn't a fan of a black screen with a not great intro voice over. You should just have some image and text. Also, the fantasy lure of the story jars with the mundane modern setting of an underground train. It would have better to just have the player wake up on some strange platform and have environmental or subtle story telling do the work. For example, graffiti or other messages giving the player clues.
Stories that have the player save the entire world from doom often do poorly. It's more relatable for the player's life to be on the line.
There wasn't anything horror related that I could see. The train and even the background sounds were so mundane. It would have been easy to make the train environment dark, for example.
On the bright side, the technicals seem just fine. Nothing seemed buggy. There was no light bleeding, or clipping. Movement was fine. It would have looked fine, for a non-horror game.
Apologies, but I can't leave a good rating as it would be unfair on the other submissions.