I bought MoO Classic and MoO 2 on GOG.com a while ago. I just tried installing and playing them on macOS Catalina, and I can verify that they work. But the stan

I bought MoO Classic and MoO 2 on GOG.com a while ago. I just tried installing and playing them on macOS Catalina, and I can verify that they work. But the stand-alone installers aren't notarized, so you'll have to approve them manually, or use the GOG Galaxy app.