Ah, zombies. Cannot kill what’s already dead, right? But you sure can outsmart them by using your trader’s wits and crafting expertise.
Zombie apocalypse or not, humans love shopping, and they’ll always need a shop to come in for stuff. Natural exchange is all good, but we’ve been building an exchange system based on commodities and money for a few thousand years now, and surely for a reason! So, just because some undead creatures are persistently trying to savor the flavor of your brains, threatening your survival in these dark new circumstances, you shouldn’t give up shopkeeping progress, oh no!