Most of the items, potions, and ammo are in GreedFall fall under the consumables category. You can buy them from a merchant or game supplier, or you can craft them yourself if you have the ability.
GreedFall - How to craft items, potions and ammo
Crafting items, potions, and ammo in GreedFall requires scientific skill. There are three levels of consumables, and each level of Science talent you purchase grants you access to a new level of potions.
Another advantage of the Science talent is that it will also allow you to use explosives to break down weak parts of the walls, which can be very beneficial in certain areas and in certain missions.
For people who wish to use firearms, science is a vital talent that allows you to create your ammunition. But in order to do that, you need to get to science level two. At science level 1, you can craft much-needed health potions regardless of the variety of character you play.
To craft consumables, you need to find a Workbench. You can find them in cities and you always have one in any camps you set up or your residences in different cities. Just head over to the workbench and interact with it, then go to the Consumables tab. Scroll down to the item you want to craft and make sure you have the required science level and ingredients. If you do, you can craft the specific item.
To ensure you always have plenty of resources