Rogue-likes are some of my favourite games, and among the many rogue-likes I own, Shovel Knight Dig is absolutely one of the best I've played.

If you've played the original Shovel Knight: Shovel of Hope game, you'll quickly find your footing, as the gameplay is quite similar, only you're going down instead of sideways, like in Downwell. I think the name of the game is satisfaction: digging through dirt is quick, snappy and instantly rewarding, same for collecting gems, the sound design of which enhances the experience tenfold. The game is crammed with stuff to do, even after the true ending is reached, with an increasingly difficult post-game that I have yet to complete due to how hard it gets.
To put it simply, it's as if a classic game like Mega Man or Castlevania was remade to fit in a roguelike setting, and it's definitely an incredibly experience. Cannot recommend this enough!

PS: I also own this game on Switch, which is a testament to how captivating the game is.