I really like the beginning. 0:00 to 0:31, the sounds of the mining is just fantastic, that bell on 0:31, definitely has to stay there.
The problem is the synth you used at 0:31 for the rest of the song. I can feel your rap/electronic past coming through, you have to understand this is for a fantasy/medieval game (dwarves) so the theme has to be simplistic, electronic synths don’t exist then, so we need something to replace the synth. I know I said repetitive, but it’s a bit TOO repetitive, after 0:31 it’s essentially the same thing for another 3 minutes.
As for the background noises, like the bells and the background sounds/bottle sounds, keep those, it gives a sort of dreadful feel, like the miners don’t really want to be working and that they’re slaves or something. I really like that feeling it gives off. It really feels as though there’s a background story that the player isn’t quite seeing (or will see if they follow certain quests)
The problem really comes down to experience here. Rap and electronic tracks are really quite repetitive, you just need to tweak your style and understand that this is a game soundtrack. Game soundtracks require that there be some sort of discernible melody, then players will associate this melody with that area, your music has to create a lasting impression. This track has the potential to do that.
TL;DR - remove the synth that comes in at 0:31 - replace it with a dark instrument and create a melody (or two) and surprise me again, and also tidy up the ending, right now this is meant to be a background soundtrack, background soundtracks must loop so the player doesn’t know where it starts or stops, this keeps the feeling going and having odd transitions in/out would just be off. To do this you need to bring in 1 or 2 instruments, build up by adding more instruments, then right near the end bring it to a quick halt by removing instruments and having it end with the same 1/2 (and one more if you think the beginning is too simple) you brought the track in with, so that it matches nicely with the beginning of the song.
I’m eager to hear your revisions to this track, if you can make this work, I’d like to provide you with a use for your talent.
Listened to it multiple times, each time picking out new sound effects, dripping water, this is really a great track and with a little more polish will be amazing.