Open Krunker.io in your browser. Look for the yellow download icon (usually a downward arrow) in the top right corner of the main menu.

Adjust your UI Scale (0.6 is a community favorite) to keep your screen clear for spotting enemies.

Go to Settings > General and ensure Unlimited FPS is turned ON .

Use the client's built-in "Resource Swapper" to load custom sounds or textures without modifying game files directly.