Item Creation (IC) is an optional crafting system that lets characters produce items ranging from consumables and medicines to weapons, accessories, and unique one-of-a-kind equipment.
To unlock an IC skill, a character must reach the required level threshold in two or three specific base skills simultaneously. The combination triggers the IC skill to become available in the "Create" menu of the camp screen. Each IC skill has its own mechanics and outputs: most involve some sort of performance based mini-games or probability.
IC roles should be planned before you spend skill points. The skills required for IC may conflict with your combat build, and the skill opposition system means you cannot max everything. Assign characters as IC specialists or combat specialists early. Remember, you can always swap out party members easily at the crashed ship.