Cool little game, but, (and it's a big but...)
I think the gather rate needs to be faster. I upgraded my gather rate, my mining site, and my fortification. At the current rate of gathering it will take over 2 years to regain the MUT I burned.
And that is only if I never let the mining stop because of not claiming before the site is full, and never get stolen from. FOR TWO WHOLE YEARS!!!!
Something has to change or I'm not going to bother playing this mini game.
We are about to increase the mining rate. It will be increased by 10 to 50 times.