Spooky! I wouldn't say that my initial reaction was scared, but the game does have an unsettling vibe that I appreciated. I did get stuck briefly because I didn't realise the symbol on the wall had appeared and that I needed to interact with it again, but I was able to figure it out fairly quickly. Maybe highlighting interactable objects would help? Though I'm not sure if that would work with the athmosphere.
I'd definitely be interested in a continuation of the game. There's an interesting theme about lost and forgotten things here, in addition to the whole "floating in a nightmare void" thing, and it all seems to be very personal to the main character. There seems to be more to it than just the zombie in the other train car.