HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

In a standard SOD (Save on Death) game, if the opponent leaves while I'm in battle, I can finish the battle and save. In version 3.27, during a battle, a message pops up saying the opponent has left and saving is not possible. It kicks me out of the battle, prompts me to save, but then gives an error saying saving is not possible with a file extension of gm0. There are no options to choose from. I suspect this is due to the password protection – the opponent's password becomes inaccessible.