I really liked this one! It honestly feels much closer to a complete game than a typical jam prototype. The mining loop is easy to understand, but the upgrades, new resources, goals, and progression give you plenty of reasons to keep playing. I especially liked how each run feeds back into improving what you can do next, which makes the experience feel cohesive instead of just being built around a single mechanic. The visual style is consistent, the progression is easy to follow, and there is a strong sense of polish throughout. I could easily imagine this being expanded with even more upgrades and content.