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Anthony D.

Recruit
1 Badges
Apr 29, 2025
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  • Crusader Kings III
How do I get CK3 to launch and play? Having issues with it since purchasing! I did try some tips from YouTube, but that didn't work. Now I don't know what to do? If anyone can help? I would appreciate that!
 
Right click on ck3.exe , properties, compatibility. Tick "disable fullScreen optimisations" untick every other box in that dialog, Apply and exit.
Then in the launcher Game Settings menu, select fullScreen display mode, Vsync off, cap refresh rate at 60.

If those don't help:
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.
IF dxdiag.txt fails to attach here, rename it to dxdiag.log , or zip it up.

Please attach here your Documents/Paradox Interactive/CK3/pdx_settings.txt .
From your Documents/Paradox Interactive/CK3/logs/ folder, attach here system.log , error.log , exceptions.txt
 
This may have some fixes. not 100% fool proof but it may have the fixes that maybe relevant. I am trying to make a mega thread for Paradox so they know this is a massive issue and for some reason haven't made a mega thread (because logic)