houses and princes
standard max npc level is 5, most people are 1hd commoners or whatever the appropriate class is. Less than 0.1% of the population can use magic either through wizardry and sorcery and they tend to be concentrated in the arcane university, as such, most people have never seen magic before.
slavery is legal and not questioned, abolitionists are considered thiefs by 99.999999% of the population. Most slaves are half orcs, humans tend to be indentured servants.