The shop page says:
MacOS 10.13+

But the demo does not want to start for me. I see a warning: "nedds macOS 10.14.6 or newer"

Damn. I thought "finally a game that runs smoothly even on older computers". But unfortunately it supports only more modern operating systems...

Sorry about that mistake! We will update the store page. Thanks for letting us know. I think it is the result of the version of UE4 we used to make the game.