It is with UDK.
I can’t find anywhere to download UDK for mac anywhere
There is no download for mac, you have to use a VM
The Unreal Engine 3 editor (UDK) only runs on PC.
The Unreal Engine 4 editor runs on PC, Mac, and linux through the community contribution.
We would highly recommend using UE4, This website is dedicated to UE4 support.