Can I confirm that you’ve already tried deleting your AppData?:
- Press the Windows key + R
- Enter %appdata% within the search input and select ‘OK’
- Navigate to AppData\Roaming\Fatshark
- Delete the ‘Darktide’ directory
You may then need to use the ‘Verify Integrity of Game Files’ option via Steam:
- Right-click Darktide in your Steam library sidebar
- Select ‘Properties’
- Select the ‘Local Files’ tab
- Select the ‘Verify Integrity of Game Files’ button
- When complete, close and reopen Steam