[2022] Game crashes while running

What happens if you run ck3.exe directly from file explorer? Any error show up?

DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/CK3/pdx_settings.txt .  

Has the game ever run on this machine? Or never?

But that Windows error c0000409 is a real worry. Crusader Kings 2 is free to play on Steam now, does it run okay?

Edit that pdx_settings.txt and find the renderer line. Change DX11 to OpenGL (EXACTLY like that). Does that make any difference?  

That's a different Windows error than we see in dxdiag. It does not look good I have to say!

If you revert to 1.5.1.1 in the Steam Betas tab for the game, does it start then?

And if you make a new Windows user and log into Windows as that, does 1.6.1.1. start then?  

You say that 1.5.1.1 crashes on start as well. Was that the case before 1.6 was released, or it ran okay back then?

If it used to be okay but is not now, this is clearly a local problem in Windows or this machine, not a bug in the game.  

lolmind1 said: When I ran ck3.exe today, the following phenomenon appeared. what is this??

Impossible to tell that caused that crash just from that screen I'm afraid.

There was a minor update to 1.6.1.2 overnight, but that's not been seen to cause any new problems.