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

Regarding the protection of lumber mills – in the map settings, it says "monsters – 5". Strong monsters – 4. Should this also serve as a challenge?%)
I changed the monster strength in the settings from random (did you notice the bug – changing the mod name resets all settings to default?) to strong – it went back to 4. Unfortunately, I didn't think to run a few more generations – later (after 20 generations), the random setting started working as intended (I thought it might be a new, cool feature...).