Everything here is from Civassist archives.
Goal is 100k in the middle ages, using ToA.
Initial research was towards Republic slingshot, which kept me ahead until about 10 turns before the end of my most recent play session, where Babylon got Invention (monopoly) and won't sell it to me.
Shortly after getting Republic, I'm sneak-attacked by Persia. Well, they'll be my first victim. This also sets off my Golden Age where I produce 4-turn hoplites in 2 cities and 4- or 5-turn catapaults in two others. Athens builds Pyramids in a ToA prebuild. At 1000 BC, I'm in the middle of my golden age, a few techs short of the end of the Ancient Age (Poly in 5, need MM and Construction), and have 5 cities.
My first stack of 2 hoplites and 3 cats rolls up to Gordium. The cats aren't enough to redline the regular/veteran pair of spears in the city, I'll have to wait for more.
My GA progresses research quickly; I get Poly in 5 and Construction in 8, then trade Construction to Babylon to bring both of us into the Middle ages. Babylon gets Feudalism, I get engineering, trade takes place, and Trebs start showing up in my city screens. Crap, I forgot about those. This is only my fourth game in Conquests, and I thought the catapaults would be my only artillery until Cannons. Oh well, they'll just move out a little slower.
Soon later, a barb sneak stack knocks out six workers in one turn, leaving me with one slave. I can't really spare the pop in my golden age to build workers, especially with a war going on while I'm a republic.
Eventually I had a stack of 12 Trebs, 7 Veteran Hoplites, and 2 Hoplite Armies (12/12, 13/13) ravaging Persia. I'm 27 turns away from Invention (at minimum research) in 380 AD, Gunpowder just behind that, but struggling to pull in an income. Persia was reduced to one city which I have yet to find, and I'm currently building up Markets to have positive GPT - right now both sliders are at 0% and I'm losing 14 per turn, mostly due to unit costs. Currently I have 26 hoplites and 17 trebs, and I'm preparing to war on either Babylon or India - India seems like a good choice since I've got a few cities of theirs with HIGH (5% or more) flip chances. I'm also settler-cramming everywhere I can get, since those free temples really build up culture fast for every city I have. 100k should be no problem if I can take over India and either one of the Babylonians or Byzantines. If I can beat out the AI to Gunpowder I can really get a jump on them, as 2 attack is obviously twice as good as one attack. Hopefully I can get a Musket army or two running, but I'll need more cities first - I've only got 16 right now, and as such, can only support two more armies. The 100k is definitely going to need a ton more cities, and I plan to cram the jungle for that. Right now I'm only bringing in 66 per turn and an estimated date of 2530 AD - not happening.
EDIT: Ok, so here's my biggest stack a few years later. I've also got a stack of 7 hoplites already sitting in a city near Delhi, as well as about 20 more trebs moving in from various other locations - basically every non-barracks city is building one every 5 turns on average, so I'm pumping out around 2 per turn. I'm moving in position to attack India right now; they've become a powerhouse after conquering the Byzantines.