I've got somewhat of an original idea here.

 

So basically, there's this planet with a giant supercontinent on it. Scattered across said supercontinent are many different "kingdoms", with each being very diverse.

 

The two largest kingdoms are Ergas and Technos, both radically different. Ergas is a medival-fantasy sort of place. The army is huge, with everyone in it (especially the warriors) well-respected. The army consists of buff and heavily armored warriors, to mages and wizards who provide support, defense, and medical care to the warriors. Ergas is commonly invaded by monsters, and despite the army's efforts, casualties are high. Life is difficult over at Ergas, which makes them resent Technos.

 

Technos has the most advanced technology out of all the kingdoms, and is isolated from the other kingdoms by a heavily fortified barrier. It is nearly impossible to get into Technos, and even if you made it past their barrier, many guard robots patrol Technos. The people living inside Technos are blissfully unaware of the outside world, and everything needed to survive is handed to them. The mysterious group of people who run Technos often boast of their accomplishments, but remain secret about many of the things about Technos (especially their technology).

 

So basically, tension is building between Ergas and Technos, with Ergas on the verge of declaring war on Technos. But if they were to do so, they would drag all the other kingdoms in the war too.

 

It's not a very refined idea, and it probably needs a lot of work.

Source: The Official Cot TBRPG Planning And Organization Topic

Please give me your feedback, guys!