Смотрите-ка что пишут об условиях вытаскивания чего-то из избушек
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Cut and paste from Apolyton

On Goody Hut Discoveries
Here are the conditions:

Gold:
--The tile must not have any type of resource or luxury on it.

Maps:
--always available

Nothing:
--always available

Settler:
--Player must not have a settler (active or in production) or any unit with the Settle AI strategy.
--Player must have less cities than (TotalCities / NumActivePlayers).

Mercenaries (skilled warrior):
--There must be a unit available to the Barbarians as well as the player and that unit must be able to be built (or have been built) by some player in the game.

Tech:
--Player must still be in Ancient Times.

Barbarians:
--Player must not have Expansionist trait.
--There must not be a city within a 1-tile radius.
--The player must have at least 1 city.
--The player must have at least 1 military unit.
--The unit popping the hut must not have the "All Terrain As Roads" ability.
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и ни одного слова об уровне, на котором идет игра.