That's unfortunate, can I get some info on the crash like, when did it crash? while opening it or after it loaded?
Edit : I've just added 'UE4PrereqSetup_x64.exe' to the downloads, if your willing to give it a try again, please install it and run the game again. It has some dependencies like DirectX and other stuff that Unreal Engine games require. It should fix most crashes.
Thanks 🙂