Bogsmire, one of the two newly crafted moons of Atlas, a planet fighting to survive, cursed by its own black magic. That same black magic created the planet you reside on, crafting a primitive world where survival means being the most powerful, a world where giant monsters rove in packs, and the most dangerous thing you can do is leave what little safety you have in your small tribal community.
Tribes are small, often nomadic and afraid of outsiders. These tribes consist mostly of the same species, seeking out more people of the same kind for safety and genetic diversity. Some tribes have branched out, and included over species, safety in numbers after all, and everyone brings new skills, and those skills could mean the difference between life and death. Knowledge is not widely known, things like leatherworking, pottery, bonecarving, alchemy, and glassblowing are the difference between life and death.
Everything has a use, waste is not an option. You must hunt, not just for food, but the bones are large enough to build homes with, the hides can block wind and rain, some creatures might have secretions that could be used to heal, or harm. Kill, capture, hunt, harvest, craft, and survive.