The following installation guide describes how to properly install YGOPRO on Mac OS X. Click on the images to view a bigger version.
System Requirements
OX X 10.6 Leopard or higher.
May work on 10.4 Tiger or 10.9 Mavericks (both untested)
Click 'Save Your File'
Decompress YGOPro files with Keka or any other file archiver for Mac OS X
~ Comixrated