The core loop of mining gold to buy upgrades and explore is solid, though I wish the items would have had some explanation to what they did, or how they worked. At the beginning i was a bit confused as to why I couldn't dig, as the player character seemed to have a pickaxe already, but I figured it out and went to buy the pickaxe.
I liked the exploration, kind of had a metroidvania vibe going. Combat's a bit rough but overall a great game!