Kazzlehorf is what you'd expect if some egomaniac decided to kill the rest of his own species and repopulate the world with clones of himself who must behave exactly like himself (at least from a personality standpoint.  A slight amount of leeway exists because Kazzlehorf with billions of Kazzlehorf can achieve every dream job Kazzlehorf ever wanted to do).  Drones pretty much build all the infrastructure since Kazzlehorf likes drones a lot.  Drones are his best friend.

The civilization before Kazzlehorf became Kazzlehorf was actually pretty advanced and much more individualistic.  But that fact is pretty hard to find with all previous pre-Kazzlehorf cultures kinda not having any proof of ever existing because kazzlehorf destroyed it all or modified it to better fit Kazzlehorf's perfection.  Kazzlehorf pretty much modified and revised shitloads of data from earlier times to omit the existence of any non-Kazzlehorf individuals (while keeping the technical data) which is why Kazzlehorf isn't a stone age civilization.  Kazzlehorf claims to have made basically everything in its 'domain'.  Ask too many questions about where Kazzlehorf came from and you might end up being attacked by shit loads of drones.