Got to reply to this, because I've been there, tried that, and for numerous reasons, it just doesn't work.
First, take China. There are indications of settled proto-agricultural groups in the territory now identified as China going back over 10,000 years (Pengtoushan Culture, cultivating rice by about 8000 BCE, decorated pottery, but no metal used, only bone and stone tools).
From that to the first non-mythical Chinese Dynasty (Shang, 1600 BCE) there are, by an incomplete list, cultures and sites named Dadiwan, Peligang, Houli, Cishan, Xinglongwa, Xingli, Hemudu, Lengyel, Majiabang, Daxi, Yangshao, Hongshan, Dawenkou, Liangzhu - and the last is still 600 years before the earliest Shang sites.
These archeological sites range from the southern reaches of Mongolia to the South China seacoast, and the various cultures have traces of rice and millet agriculture, jade and lacquer-working, decorated pottery, stone, bone and early bronze tool production, domestication of pigs, sheep and goats and rammed earth defenses - all characteristic of later Chinese Civ, but NONE of those sites have all of them. Furthermore, the few skeletons/DNA recovered shows that many of the populations migrated into the area of much later China from the west - Siberia, Mongolia, etc. And some of the sites show distinctly Non-Chinese cultural attributes - like Totem Poles and South Pacific-style stilt houses.
So, which one is going to result in a "Chinese" Civ? Given that the starting locations/conditions range from the river valleys to marshy coastal areas to hilly highlands and populations that do not conveniently stay where they started, regardless of when you start the game between 8000 and 2000 BCE.
Back in Civ V days I tried coming up with a combination of resources and terrain that allowed me to 'model' a specific start position for each Civ, so that if you chose to play, say, Greece, you got an appropriate Starting Position every time. Unfortunately, unless you start the game at about 1700 BCE, when the "Greeks" arrived in Greece, they weren't anywhere near their "starting position": they were horse-nomads from the area between the Caspian and Black Seas who migrated into an area already settled by agriculturalists with already-founded cities named Athens and Argos (neither of which word is Greek: both sites were already settled before 'Greeks' arrived). And how do you differentiate between the chariot-riding nomads that moved southwest and became Greeks, and those that moved north and became Germans, Poles, Dutch, French (Gauls along the way) or headed the other way and became Aryans, Mauryans, et al. (And earlier, groups that moved east and became Proto-Chinese?)
To put it bluntly, you can't. In fact, one of the few things Humankind got exactly right was their Generic Neolithic: there is damned little connection between most of the pre-agricultural or proto-agricultural groups and the later 'Civs' in the same area. As mentioned, in the case of China there are both too many groups to define a linear connection and a gap of several thousand to a minimum of 600 years between them and the first recognizable, historical 'China'.
Oh, and I also tried to come up with 'real' Olmec city-names from Mixe-Zoquean or Epi-Olmec, and after more work than it was worth came up with 6 cities whose names are sort of related to their modern Spanish or later Nahuatl names, and that's assuming that there are really any connections at all between the original and the later names given to them. Frankly, I felt like I was reconstructing the American capital from the old archeological parody, "The Digging of the We-en" in which far future archeological researchers translated Washington as Pound Laundry. After a certain amount of supposition, it all becomes Fantasy . . .