Makes me sad to see it’s Windows only given it’s so graphically simple and low tech. Should be a shoe-in for a Mac and Linux version.
Edit: yes I know proton exists, my point is that as an indie game it is likely built with something like Unity or Godot, and thus exporting a native Mac and Linux build is just a matter of turning on a couple check boxes.
There’s CrossOver on Mac which works pretty well for most titles too. Not as good as proton but let’s say 75% there. But you might be right that the success of proton is disincentivizing developers from targeting either. Still disappointing though as a game like this is an ideal candidate for Mac and Linux, compared to some AAA title.