We have spent a lot of time locating as many Apple Mac devices as we can find to test the game on, and from our testing, the game appears to runs perfectly fine on Apple OS. However, due to the graphical capabilities of Apple Mac book Pros, we recommend that you lower the settings to as low as possible to help speed up the loading process. We are still working on optimisations for the game, but would like to note that a lot of issues reported are due end user machine specification capabilities. We will continue to be in touch with more information as we receive it. Thanks Deceptive Games