Recs if you like Witch & Wizard (Witch & Wizard, #1)...

"an imagined world or society in which there is great suffering or injustice, typically one that is totalitarian or post-apocalyptic. many of the people lead dehumanized and fearful lives"

This is a list with fictional dictatorships, that might be placed in the real world or in a fictional world. They all count as long as the regime in power was invented.