A good listen!
To me, the electric guitar feels kind of unnecessary, but then again it's also what makes this song individual, so whatever. All I can see when I listen to this is a person digging deeper and deeper into a mine, which is why I like your music: all of your songs create one specific image in my head*. In fact, I think that's why these songs remind me of videogames, and by proxy is why I like video-game music.
Keep it up!
*you could argue that music in general does this, but I think that far too many songs create vague blobs. then again, I have a more visual side to my listening, so MEH.