This recently got an early access release on Steam, but there's a "Prologue" that's free (basically a demo), and I stayed up way too late last night playing it. For me, a deckbuilder has to do something interesting for it to hook me, but if it does, oh boy. This one does it with a great art style and action movie vibes all over the place. I'm playing some other stuff now, and the game is in early access, so I haven't sprung for the full version yet, but it's a safe bet that I will.