How are your characters’ basic needs met?
What is the hierarchy (and there has to be at least one, someone has to be top dog)?
How is your world governed? Are there rules nobody can break? What are the reasons?
In dealing with magic, can everybody produce the same amount? Or do certain groups have more magic than others? Can those lower down the scale “earn” or “learn” more magic to bring them closer to their superiors?
What happens if someone defies the basic rules or some lowly herbert betters themselves magically so they become superior? What would the fall out be?
What happens if someone from the superior class magically speaking rebels against that or the structures of your society?
In a fantasy/sci-fi world, how do your characters communicate? I’ve got the Kingdom “borrowing” ideas from earth and adapting them for their use.
Could everyday items we take for granted be misused on another world or even be a threat? Could these items be turned and used against us?