The worlds stwrt of humanity! Lets mke it seem unique.
For the most part the eastern coast close to Arabia is pretty closely Arabic in its playstyle so leave it alone. But the more west and south you go?
Lets start westward with the most unique aspect of all
Saltworks
Civs Possible: Malians, Songhai, Ghanese, Nigerians, Hausa, Kanembu, Mossi, Yoruba
At 150w, the Saltwork replaces the Mining Camp but unlike the 125w dropsite replacements, this one doesn’t add any housing. Instead, the Saltworks functions as a healing and defensive source: Salt flows in from all nodes within its radius and gold and stone are trickled into your resources without villagers working. Now granted this method is slow as heck even if it works multiple nodes in radius at once! It gathers them but you’d be a fool to not use any villagers of your own. And if that’s not enough multiple Saltworks can gather at the same time from the same nodes.
Granted this can be expensive, and one villager will gather faster than 3 Saltworks so keep that in mind. The other thing is that Saltworks are healing. They heal nearby villagers and those garrisoned inside heal about 2.5x faster than in a castle!
This is a big shift mind you. Still it can help you field the gold heavy armies that roam the desert with armored cavalry and infantry alike!
Assegai
Civs Possible: Yoruba, Swahili, Kongolese, Zimbabweans, Yoruba, Nguni… Somalia?
An area where most cavalry cannot go to Tsetse flies, the Assegai spearman is pulling a lot of double duty as the scout, the spearman and the skirmisher. When in Dark Age, these faster spearmen with some level of PA dont get any cavalry bonuses yet, nor the ability to shift to min range throwing. After Feudal? yea this unit unlocks a bit, being trained in both military buildings, and the only difference between them: the form the unit starts in. It costs a flat 40f/40w and thankfully it doesnt have suffer bonuses for “vs spearman” or “vs skirmisher” but as far as function goes? It’s okay. Most Africans still have gunpowder so while this unit plays the job of all 3 trash units, it doesnt crunch their potential unit lineup into next to nothing. There’s still heavy infantry, archers and gunpowder tech possible!
So, what IS the Assegai? It’s a sort of African light spear that was used in the region, good for both stab and throwing and an excellent hunting weapon for what it’s worth. Some civs at the corner of Tsetseality could be users of this spear but still be privy to the existence of horse and camel. This could put an interesting conundrum on their military arsenal and their starting scout possibility!