"The Unarchiver" app is free from the Mac App Store. Drag the two downloaded game files at the same time onto The Unarchiver and it will unzip and combine them into a single DMG ready to install.
https://apps.apple.com/us/app/the-unarchiver/id425424353?mt=12
Note to everyone who is bad with computers. DON"T make the files into normal zipfiles but just open then with the program of nightschotsman. it works if you leave them in the original state. but probs just me that was like i need to change it before i open XD. Ps it works now thanks for recommending the program :3
