Is it possible for you to set the minimum OS version that your application requires. Right now, if I build my game for Mac, it requires 10.9.2, but I have some people that are still on Mountain Lion that want to play it.
Is there any way for me to use limited features so that the game can be deployed for OS 10.6+?
We have set the minimum deployment version to 10.9.2 deliberately as UE4 requires, at a minimum, 10.9.2 to render correctly. Earlier versions of OS X have OpenGL bugs that will cause UE4 to render incorrectly and even crash and as such we do not support UE4 on OS X prior to 10.9.2.