: Delete the "Crusader Kings III" folder located in Documents\Paradox Interactive\ . Note: Back up your save games folder first to avoid losing progress.
: If your game started crashing after the April 20, 2026 update, right-click CK3 in your Steam Library : Properties > Betas > Beta Participation and select an older version like 1.18.4 (Crane) . ck3-crash
: 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
: Windows 11 users (specifically version 24H2) may face unique compatibility issues that Paradox is actively working to resolve. and performance monitors like MSI Afterburner