Greetings!
In my Thandor campaign, I wanted to establish where Humans were ascending somewhat to a dominant position--but only in ome regions of the world. There are many areas under the control of monsters. I also have reptilian humanoids that are fiercely seeking to maintain their power--and also to expand their dominion. I have several different races of reptilian humanoids, which they themselves live in different regions for the most part, with only some degree of overlap.
Mainly speaking, I have divided them into four major races;
(A): This group is a quasi-primitive, barbarian tribal culture, very widespread, that proliferate throughout jungles, swamps, and marshlands.
(B): The second major group are highly civilized and embrace a sophisticated culture that loosely resembles a Classical Roman Empire.
(C): The third group are brightly-coloured reptilian humanoids that live in both jungle environments, as well as desert environments. While adaptable, the race has two main cultural elements--one is a savage, barbarian tribal culture, while the other culture group is a civilized culture, typically living in decadent ruins and urban city-states, seeking to rebuild their lost, ancient glory.
(D): The fourth racial group are related to the others--being reptilian--but their ancestry is much more rooted within Dinosaur heritage, as most have tyrannosaurus heads. The fourth racial group of reptilians are somewhat of a long-recovering remnant from an ancient, global empire that possessed superior technology and vast magical abilities. These occasionally live amongst other reptilian races, while others remain exclusively in isolated fortress cities, hidden away from much of the world.
I often like mixing different races and cultural templates. It creates many adventure and story opportunities!
Semper Fidelis,
SHARK