Earlier this week I played through Steamworld Dig on the Nintendo Switch. I bought it for a song during Nintendo’s New Years sale, and I found it well worth it. It is a high-quality game with a fun—and brief—game loop. First you explore the mine and collect treasure, then you return to town to sell the treasure and purchase upgrades. There isn’t any more to it, unfortunately, but the gameplay is fun nonetheless.
A while ago I played through the sequel, Steamworld Dig 2, which bests the first game in every way imaginable, including turning it into a full-fledged Metroidvania. If can pick up only one of the two, Steamworld Dig 2 is the one to get.