Mr. Mine

Mr. Mine ties depth directly to reward, deeper layers hold rarer gems and artifacts, but they also demand equipment your starting gear simply can't handle, which turns descending the mine into a genuine investment decision rather than a straight line down.

Because hired miners work automatically once assigned, reinvesting income into more miners rather than manually digging tends to compound faster over a session than clicking through shallow layers by hand. Upgrading drill strength before pushing into a noticeably harder layer avoids the common trap of stalling out on a layer your equipment can't efficiently clear. Idle Mining Empire runs a similar depth-and-automation mining loop with a heavier business-management angle.