I tried to play this on Linux (Ubuntu specifically) but it didn't open.
I haven't tested the Linux/MacOS builds yet, but in the meantime I think Wine + Windows build should work
I downloaded the MacOS one instead, and that one worked. And nice game, though.
Have you still got this MacOs version?
No. I don't use MacOs anymore.
Maybe the binary does not have the execute file permission? (Check file properties in the file manager.)
