The game is very impressive. The train designs, the environments in general, and the enemies each having their own gimmicks are all great. The AI is especially impressive considering it was made in only seven days, and the whole experience feels very polished.
The combat is fairly simple overall. I do find it a bit annoying that your weapon gets unequipped when interacting with objects. It interrupts the flow, makes me want to pick up items less, and entering the next room without your weapon feels frustrating. Still, the game has great creepy vibes, and I am curious to see where it goes after the jam.