Really good stuff, I haven't gotten too far in yet so I don't know if it includes the supernatural elements of its inspiration but what I've seen so far feels very much like the Metro books and games.
I liked how the graphics were pretty much the urban version of Brogue but there is one thing you might want to look into and that is that sometimes there are tiles with the same color as the surrounding ground tiles but lacking that faint little dot, you can't walk on those but they are super hard to see unless you know they're there.
I really liked how the controls were laid out with 1,2,3 and Space for all the actions. Felt really natural to have all your fingers over.
As far as I know there was no way to navigate the shop and inventory without mouse, although come to think of it maybe that could be done with TAB but I never thought to try that, would have felt nicer to just use the Numpad and Space though.
I managed to reach a station without an exit. Or rather I think the exit was behind a barricade and as far as I know there's no way to move through those diagonal gaps in the walls, they just act as windows, or am I missing something here?
Anyways, good job, I'm sure I'll try this out again in the future :)