Certainly! It seems the Steam launcher isn't recognizing the language files.
If you go to properties and open it internally from the file then it should show up again.
1. Right click the game in the library and click 'Properties'
2. Click 'Installed Files' and 'Browse...'
3. Click 'Salvor DEEP.exe'
4. Once you start the game in that file the language option should display.
I'll get a fix for that as soon as I can.