"Unrecoverable error encountered" fix

1. Run the game.
   
2. In the game options menu set the desired parameters of screen and graphics.
   
3. Close the game.
   
4. Go to the game folder (*\steamapps\common\Enclave).
   
5. Open "environment.cfg" with notepad.
   
6. Change the value of the "VID_RENDER=" field to DIRECT3D8. The entire field must be like this:
   
   VID_RENDER=DIRECT3D8
7. Optionally: set the desired resolution by changing the value of the "VID_MODE=" field. For example, for 1920x1080 resolution (and 60hz refresh rate) the field will be:
   
   VID_MODE=1920 1080 32 60
8. Save and close the file.
   
9. Open the properties of the "environment.cfg" (Right Mouse Button -> Properties
   
10. Check the "Read-only" and press the "Apply" button.
    
11. It should fix the crash.

My specs: Windows 10, Intel(R) Xeon(R) CPU E31270, Gtx 1060 6gb, 12gb RAM.

Before that solution I tried different methods to keep 1080p resolution and avoid the crash, but nothing helped.
Provided method works without using any other tools such as "dgVoodoo2" or setting CPU affinity to one core. At least for me :D

You can try and set the render mode to Direct3D9, Direct3D10, Direct3D11, Direct3D12 or OpenGL the same way as described above. But it probably doesn't work.