In the download, I get the app, and I get a "LWS_Launcher.app"

LWS Launcher throws an error when I run it, "LWS_Launcher.app" is damaged and can't be opened.

But I can run the app just fine on its own. It opens to the menu and I can click on Mercury, but when I get to the level select screen, clicking on a level doesn't do anything (besides play a 'click' sound).

MacOS 10.14.6 running on a Macbook Pro from mid 2012.

Graphics cards are: NVIDIA GeForce GT 650M 1 GB, and Intel HD Graphics 4000 1536 MB

I got it to work.
Go to the app (not the launcher) and right cilck > show package contents

Then go to the MacOS folder and open the Luna executable