importantgeneral
How to verify files
Step-by-step instructions for validating the Kathana client through Steam: open the Library, right-click Kathana, go to Properties > Installed Files, and run "Verify integrity of game files". Repeat the verification until Steam reports all files verified correctly.
Step 1: Open Steam and go to Library. Step 2: Find Kathana and right click it - go to properties. Step 3: Go to the "installed files" tab. Step 4: Click on "verify integrity of game files" Step 5: Repeat step 4 until it says "all files have been correctly verified"