I noticed that the IndieGoGo only mentions an executable, which is for Windows, but what about an application bundle for macOS? Yes, I realize that Macs don't have powerful graphics cards, but the graphics cards in Macs are powerful enough to play a game like Firefall. I have an iMac with a GeForce GTX 680MX and I play Firefall at max settings. To build the project for Mac, all you would need is a Mac with UE4 installed. What surprises me is that the developers of UE haven't been able to support exporting a game to any platform. Also, I think Ember should be using the Vulkan graphics API instead of DirectX for Windows. For Mac, Ember should use the Metal graphics API.