Also, the creature growth in castles in the second Heroes game is only related to the presence of the "well" building in the city (not counting specific weeks/months). But in the third Heroes game, captured external buildings ("hidden spots") and artifacts (parts of the legion statue) matter, plus the grail in some cities, it seems.
However, the well in the second Heroes game adds as many as two creatures per week, and thus you can get 3 dragons or titans per week!!!
And also, in the second Heroes game, the maximum income from all castles except the Warlock's is 1250 per day (when the statue is built), and for Warlocks it's 1750 (when the statue and basement are built), but in the third Heroes game, you can collect 2000 from any built castle, and from one (conditionally called the capital) - as much as 4000 gold!!!
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