Unit Upgrade Gold Costs

[EndoConvert]

Where are unit upgrade gold costs stored? I looked in all the XML files in the assets\Gameplay\XML\Units directory and couldn't find them. Civ5Units.xml has what units upgrade to what under <Unit_ClassUpgrades></Unit_ClassUpgrades>, but I can't find any actual gold costs.

 

[Spatzimaus]

Where are unit upgrade gold costs stored?

They're not. They're based on the difference in base costs between the two unit types. So if a unit that costs 100 hammers upgrades to a unit that costs 200 hammers, it'll take that 100 and multiply it by some conversion factor based on difficulty settings, and say that it takes X gold to upgrade.

There are ways to modify this: wonders and policies that reduce it across the board already exist, and you can have a promotion that gives a single unit a decreased upgrade cost. (No promotion like this exists in the vanilla game, but you can make one.) But at present there's nothing in the unit table itself to adjust this.