• We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.

SkyeFall_08

Recruit
1 Badges
Apr 3, 2025
1
0
  • Crusader Kings III
I've been playing the 1.6.1.2 version (Castle, I believe) by opening it through the Paradox Launcher, but I realized that it wasn't the latest version, so I'm trying to launch it from Steam, but it keeps on crashing. I have deleted all the files from previous gameplay, as I heard that it might be the cause. After pressing start from Steam, the launcher would open, then after I hit play, with no mods, the game would load for a good while, then just crash. After repeated attempts, once in a while it would open, but after I picked my starting character, it would crash and close again. I've tried the clean re-install method that was shown in older threads, verified the game, allowed it through Windows Defender, but nothing changed. Here is some data I can provide.


error.log and system.log are empty, exception.log can't be found.

Thanks again and I hope yall can help me.
 
Please do a full **clean** re-install:

- move any valued save games elsewhere
- "uninstall" in Steam-CK3
- manually delete both the Steam/SteamApps/common/Crusader Kings 3 AND Documents/Paradox Interactive/Crusader Kings III/ folders - In particular make sure there are no files or folders left under either the Steam CK3 or Documents CK3 locations, before installing again.
- re-install game in Steam, run a Steam Verify when done.
- add CK3.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware "Apps Allowed Through" list.


THEN 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