Search for 00 04 00 00 → replace with your desired width in hex (little-endian). Example for 1920 (0x780): replace with 80 07 00 00 .
Choose "Stretched, 4:3 Aspect Ratio" combined with proper resolution handling to maintain shape, OR choose "Force 16:9" (if available in newer versions) to fix stretching directly. Apply and Run: Click Apply and launch the game. Source and details available on PCGamingWiki . 3. Alternative Method: Hex Editing for Widescreen chaos legion pc widescreen fix fix