📑ItemStack

Defines which items can be stacked in the inventory (such as jewels and potions) and, optionally, whether a full stack is automatically converted into another item.

Column	Accepted values	Description
Index	Number (item code)	The item that can be stacked.
Level	Number, or *	Restricts the rule to a specific level of that item. * = applies to any level (used when there is no rule for the exact level).
MaxStack	Number from 1 to 255	Maximum number of items that can be stored in a single stack.
CreateIndex	Number (item code), or *	If specified, when the stack reaches exactly MaxStack, the entire stack is automatically converted into one unit of this item. * = no conversion; the item simply stacks normally.
Comment	Text after //	Free comment (typically the item name), ignored by the game.

Notes

• Any item not listed in this file cannot be stacked and always occupies its own inventory slot.

• Automatic conversion (CreateIndex) occurs only when the stack reaches exactly MaxStack. This is how, for example, 24 Card Pieces become a different item, or 5 Symbols of Kundun become 1 Jewel of Chaos (see each row's destination item in the file).

• Items such as Box of Kundun use multiple entries for the same Index (7179), one for each item level (+1 through +5). This makes it possible to assign a different MaxStack for each level, even though the default configuration uses 255 for all of them.