Add a rule to Section 2 called “2.15: Craftsmanship”

Each Survivor has a statistic known as ‘Craftsmanship’ tracked in the GNDT. It can be any integer from 0 to 100, and shall initially be 10. Whenever an action requires a Survivor to use their Craftsmanship skill, they must roll DICE100 in the GNDT. A Survivor may train their Craftsmanship skill as a daily action, to raise it by 5, in the same method as Fitness Training: if you lose the roll against your skill, you gain the 5 points.

Add a subrule to rule 2.10 “Inventory” called “Item Creation”.

A Survivor may create an Item for use in their Inventory by rolling against that Item’s ‘Craft Difficulty’ with their Craftsmanship Skill. Every Item has a ‘Craft Difficulty’. If the survivor succeeds, one of the item is added to the inventory. If the survivor fails, no action is taken.