If you have been playing on a "different" version of the game, switched over to the legal steam version, you may find your save file "corrupted", unable to load it in the steam version. It's not actually corrupted.

The file is called "DDDA.sav". It may be in different locations depending on the installation methods used. For me, it was in the game installation folder. Easist way to find it is to navigate to the game installation folder and search for DDDA.sav using your file explorer.

Make sure you have the "corrupt" DDDA.sav backed up to a safe location.

Navigate to

C:\Program Files (x86)\Steam\userdata\###YourIDHere###\367500\remote

• Delete the DDDA.sav if there is one there.
  
• Load up the game, start a new game and let it save.
  
• Close the game and go back to the location described above.
  
• Create a new folder somewhere (Desktop, etc.) and copy the newly created DDDA.sav to the folder.
  
• Rename your old "corrupt" DDDA.sav to something else so you know which is which and they are not overwritten.
  
• Copy the corrupt one to the same folder.

Download this wonderful tool:
And place the .exe in the folder with the save files.Open a command window at the location of the folder. Hold down shift and right click to bring up the option.

• Run these two commands:
  ddsavetool -u DDDA.sav
  ddsavetool -u oldDDDA.sav
  
  
• You should now have two text files in the folder,
  DDDA.sav.txt
  oldDDDA.sav.txt
  
  
• Open DDDA.sav.txt with a text editor.
  
• Bring up the find function of the text editor (ctrl+f). Enter the following:
  mSteamID
  
• This should find the line
  <u64 name="mSteamID" value="###yournumbershere###"/>
  
• Copy the value, i.e. ###yournumbershere###
  
  
• Open oldDDDA.sav.txt.
  
• Bring up the find function of the text editor (ctrl+f). Enter the following:
  mSteamID
  
• This should find the line
  <u64 name="mSteamID" value="###differentnumbers###"/>
  
  
• Paste the value, ###yournumbershere###, replacing the ###differentnumbers###.
  
• Save the file.
  
  
• Move the new file out of the folder.
  
• Rename the old file to "DDDA.sav.txt"
  
  
• Bring up the command window again.
  
• Run (on the old file, now renamed):
  ddsavetool -r DDDA.sav.txt
  
  
• Copy DDDA.sav from the folder and paste it back into the game save location, overwriting the one thats there:
  C:\Program Files (x86)\Steam\userdata\######\367500\remote

Congratulations, you are done. Hopefully that worked.