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

The game freezes during the opponent's turn. How can this be fixed?

Unfortunately, there is no solution yet. :( You can only replay the previous day or two, hoping that the game won't freeze – sometimes it helps.
Arise, please pack the AUTOSAVE.GM1 file, which is created before the freeze, into a ZIP archive and attach it to your message. We will add it to our collection of problematic save files and earnestly ask Baratortcha to sort them out.:smile05: :smile41: :smile45: