I played on a while ... its been fun ... No water on the island ... and due to an accident no Zulus either ...
I've taken a pile of cities of the Zulu. I'm up to 36. I may post another save when I get chance.
I avoided War Chariots like crazy, I dont like Despotism and Golden Ages, they just dont mix and arent worth it IMO. Built lots of swords, took a couple of towns off the Zulu and killed a lot of his troops. Made peace, for a tech and some cash. Then went to .... cue drum roll ... Feudalism.
I checked in Civ Assist, I even made the changes and tried but both Monarchy and Republic put my economy into the red by a serious amount. I should post this in stories and tales. So I'm in Feudalism, pop rushing temples, markets and harbours when I can. I'd seen another settler site up the Western Arm, almost opposite Zimbabwe. Sent a settler and a couple of AC over to claim it. The Zulu go to war again. I'd made some good trades though, techs and gpt for lux and resources. Seems I have a bit of a hold on the Iron market. 100% research and making 25gpt profit wasnt bad. Put me better than Monarchy, and due to the lux slider better than Republic either.
I waste the Zulu with archers AC and Med Inf. THe extra spears got upgraded to pikes so I could stop towns culture flipping due to my low culture. As someone said, I starved them down to pop 1 then let them grow. Made peace with the Zulu, for techs and 2 cities, on another island.
The advantages of Religious, switched to Republic, because my economy can now handle it and keep going. Having a stockpile of cash, I can now rush with that. Tried trading but the best offer for furs and Ivory was 8gp ... I dont trade that cheap.
As the towns grew, so did the unhappiness, switch to ... Monarchy ... everybody happy, research up to a decent level and I'm not far off Mil Trad.
Its 1200 Ad ... I'm still alive ....

... Scorewise the Celts ... damn their agri trait are running at around 1400 points, the Romans on 1300 or so and I'm on 1200 ish. I've got Iron and Horse to spare, about 2 of each. I've got plenty of furs, Ivory and gems. I have 2 Salt as well so Cavalry are on the cards. Mpondo, on the East coast of the western arm, had 2 gems, its also got jungle and marsh so I'm hopeful of coal, possibly rubber.
I built SoZ, got the Lighthouse and Colossus from Zimbabwe, they built Knight Templar in Ulundi, just as my AC arrived on the doorstep so it made a nice house warming gift.
I need to spend an hour or so shuffling troops. I can bring the swords I used for hunting barbarians ( try 4 horse rushes) North, and upgrade some pikes to muskets and garrison my towns more efficiently. Then I think my mobile force is going to aim Northwards. The eastern territory was purely Zulu, and thats all mine now. To the north there appears to be a lot of marsh and jungle There is one Hittite town I can see, its not well defended. And then its the Greeks. So I'm probably going to hit the Greeks with AC and Cavalry supported by Med Inf.