Hmpf, what a pity. I would have been interested on your thoughts about the game. :/
My best guess is that your graphics card does not support Vulkan. The only option for me would be to provide an openGL3 version (offshore uses openGL3), but this version would take away a lot of charm, since this game tries to have a more realistic look with volumetric fog.
Out of curiosity, what GPU do you have?
Edit: You could try to enforce it by running .\duesternis.exe --rendering-driver opengl3, but the experience would be definitely different.