"HW rulez" mod (add-on) for HoMM3.

sorting could be implemented, but... it's still easier to do it manually in the folder with the save files.

Not when you have a hundred save files. You need to move the unnecessary ones (and you can't see the details in the file manager, so you might make a mistake and have to start over), then restart the game so it updates the list.
%имя_оппа%(%color%)-%номер_партии%-%дата_игровая% - it seems simple and convenient.