I have, admittedly, spent far too long playing the demo of Rock Crusher. An upcoming incremental clicker with Leaf Blower Revolution vibes.
Quite a simple game when you first start it that sees you do nothing more that throw your mouse around the screen, to crush rocks and use your blower to push gems off the screen. You have limited health that goes down as you drill rocks, and limited energy. Over time though, you build up into something quite ridiculous with helper drones and all sorts thanks to the rather large skill tree that lets you continually expand.

Direct Link
It's an odd, slow and very therapeutic game. Although, it does get a bit nuts the longer you play of it.
There's some sort of story to this one too. You're on a mysterious planet and eventually you'll have some combat encounters, and when you beat all the bosses you'll get an ending which will reveal the secret of the planet apparently.
Try the demo that's live on Steam. It has a Linux version.