First, it's slow. I get it; the slow pace adds to the atmosphere, but still... walking through as many as eight or ten train cars before anything of note happens is asking a lot.
I just got to the area where the lights go out. I can see a few illuminated items as I turn around, but I can't progress. I gather I have a flashlight; but I have no idea how to use it. And the tablet that has the game settings (including telling me the keybinds) doesn't work in the dark, so I can't figure out what key to press for the flashlight.
I did what any gamer would do, and started one-by-one... Q, W, E, R, T, Y, U, I, O, P ... and so forth. None of the keys seem to do anything anymore. Nor do any of the mouse buttons. I can still look around. I think I can jump. But nothing else.
And because I can't use the tablet, I can't even quit the game without invoking Task Manager.