: Disable the Steam Overlay , Discord Overlay , and performance monitors like MSI Afterburner , as these can interfere with the game’s loading process. Optimization for Stability
: Delete the "Crusader Kings III" folder located in Documents\Paradox Interactive\ . Note: Back up your save games folder first to avoid losing progress. ck3-crash
: In the Paradox Launcher settings, change the "Renderer" between Vulkan and DirectX 11 (DX11) . Some systems run significantly more stably on one than the other. Troubleshooting Common Causes : Disable the Steam Overlay , Discord Overlay
: Disable all mods in the launcher and try to start a new game. If it works, re-enable mods one by one to find the culprit. : Disable the Steam Overlay