psatkha
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This means they were digging around in index.bin, which is where new slots for creatures are added. Otherwise, neither the map editor nor the game will recognize the new creatures (I wanted to create a mini-mod for myself that would restore the Black Knights, and it simply didn't work without the index.bin from ncf).
The main thing is in the .exe file, because even if you write anything outside of the .exe, the game will give an error and nothing more!
С уважением, Psatkha (Псатха) 
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Неудачное планирование ведёт к неудаче ...
NCF - мод, добавляющий дополнительных существ в HeroesV 3.1
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Неудачное планирование ведёт к неудаче ...
NCF - мод, добавляющий дополнительных существ в HeroesV 3.1