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

Checked, the healer fixed this castle, which is good. Yes, I forgot to mention that, just in case, I made it so that only your own castles and heroes can be healed. The Shadow creatures are neutral, so any player can remove them. After successful testing, I will replace the selective healing with general healing. And then with automatic healing, where bugs will be fixed before they are even noticed.