I had been unable to launch Hawken for about 2 or 3 weeks now. When I tried to launch it will hang up instantly. I accidentally launched it through my nvidea GeForce experience console and it works. I have no idea what is the issue but if you have this issue with nvidea try launching it that way.
To Note: I have a new i7 skylae with a GTX 980 Ti and am running Windows 10. It was a brand new build with a pci ssd. I am horrible at keeping up with forums but I will try to check if people have additional questions to try to help figure out why it won't launch from steam