OK folks I figured out what the problem was. It was the recording software DXTORY. Once I closed that app GalCiv ran fine. Hopefully this is fixed in the future by either you guys or the DXTORY folks.
I just installed the game today and it crashes whenever I try to run it. I've tried both verifying the game cache as well as uninstalling and re-installing. I've restarted Steam and have the latest Nvidia drivers. I checked but there is no error log file. The error is an APPCRASH in GalCiv3.exe in the d3d11.dll. If you need more information just let me know. Below is my 64-bit DXDIAG: ------------------
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