I like the concept but it was also hard to grasp. At first it took me like 1 min to figure out that I was supposed to bring ores to the center, and that I could mine, and I am not sure if I understood how the multiplayer aspect is working. So maybe it got me a bit confused.
That said, I liked a lot the atmosphere, I enjoyed the gameplay and when I started understanding what it was about it was fun!
I think the concept is fun, I like how you match that with loops. Passing the initial friction, I think it's a good game. Good job! :)