Yeah Spintronics was absolutely a bit of a inspiration after the Steve Mould video he did. In fact I'm still racking my brain for some kind of physical analogy rather than circuits, since you can reason about them better. AlphaPheonix talks a lot about how water + gravity is a really good intuitive analogy for voltage, with pipe circumference you could get something like current, but that would be a totally different (and also 3D) game.
I find the physical Zachtonic games to be the most compelling, Opus Magnum especially, because you're essentially learning a brand new way to compute using space and time as your algebra rather than logic gates. I'd love to find something more akin to that.