I really love it's satisfying and simple gameplay loop, where the play area is naturally expanded overtime at the my own pace. The shallows did a really good job acclimating me to the controls in relative safely, while also wordlessly explaining the depth/mineral price relationship with the one central deep spot.
Unfortunately, I haven't gotten very far since my game crashed some ways in and caused a non-insignificant loss of progress. My only wish right now is a quicksave or an autosave feature when I get back to the surface to prevent this in the future.