I got this idea by reading multiple books such as 'The Lord's Empire' and city, island and castle development novels. I think that especially in The Lord's Empire, cultures beside Chinese were very underdeveloped whereas I believe the idea of inheriting the trades of our ancestors is quite interesting. Combining it with my love of conquering, this idea was created.
The residents of the world get gradually teleported to another continent, awakening the power and jobs of their ancestors. Whether they are historical, semi-fictional (like Yu the great, the first emperor of the Xia Dynasty) or even completely mythological and religious figures. Depending on the ancestors the inheritors receive different missions.
The world is divided into millions of continents, each hosting a different culture, from different planets or dimensions. During the progress of the book, these continents will gradually fuse to increase the borders and progress the plot.
The protagonist I envisioned is the heir of Chaos, the first greek Primordial. Honestly, I was torn between Greek and Roman mythology, but I thought that as the Primordial of the Greek it is a somewhat distant cousin of the Romans and can be merged later on to create the Primordial empire. Different people on the greek continent establish different powers like the Hellhound tribe, the Olympian empire, the Golden Religion (Titan believers), Cyclops tribe and others. In the first part of the story the protagonist embarks on a journey to return all the people of the greek continent back to their roots, the primordial empire. After occupying the whole continent, the conquest will continue, incorporating all cultures to create the one origin empire.
I thought it would be interesting to add summoned troops such as spartans or the athenian navy, heroes like Leonidas or Alexander the Great and even divine beings such as gaia who can control all the land under the control of the MC (can help with the movement of infrastructure when upgrading the territory or even with agriculture, even though Demeter would be the better choice for that).
Of course, if any author would like to represent their own culture when writing this type of book, I would definitely love it, as that adds a nice spin on the idea and is certainly more detailed and authentic than authors writing about a foreign culture.