I can build a huge castle! In theory, at least....

[Samurye]

I'm having an issue. I've researched Huge Castle, but I can't build one. I don't know why. Is it because you can't build HCs in Deserts? Can you just not build them in Baghdad? I don't know if this is WAD or not, and I'd like to make sure before I go and use any kind of cheats or anything.

 

[unmerged(217556)]

Some of the high end buildings have as a requirement that the province be making a certain amount of money when the building is made. So if there is a revolt, looted, or any of the other province mods that lower the income, you should try to get rid of those and then see if you can. If that province income still isn't high enough you might just have to wait until you have a ruler with higher stewardship.

 

[Samurye]

The threshold is 15 ducats a month, correct?

 

[unmerged(217556)]

I'm not sure exactly the number, but that sounds about right. Also don't forget that the list of techs only applies to your capital, so if you are trying to build it in baghdad and baghdad is not your capital, it might not have the tech.

 

[Winchester]

I have no idea about the income requirement, but you cannot build a huge castle in a desert, nor in mountains or a marsh

huge_castle =
{
cost = { gold = 5000 prestige = 0 piety = 0 }
construction_time = 120
required_province_improvements = { large_castle = yes }
required_advances = { huge_castle = yes }

onetime_bonus = { prestige = 150 }

lasting_effects =
{
supportable = 10000
periodic_loyalty = { nobles = 0.003 }
percentage_score = { gold = 0.95 }
periodic_score = { prestige = 1 }
pillage_score = { gold = 1 }
}
mountain = no #note that attrition will make a large castele pretty nasty in these lands anyway
march = no
desert = no
additional_return_on_investment = 0.06
}

Baghdad is a desert province.

As for province tech levels, you can see them on the map - identified by colour - by clicking the relevant tech in the Advances window

 

[Samurye]

Okay, I thought it was that. Ah, well. I suppose that it's true only a foolish man would build his house upon the sand.