Turn 200:
https://www.youtube.com/watch?v=s8KEoxcib-4
( not a typical game though lol )
Turn 228:
https://www.youtube.com/watch?v=Roq3DYYG8FI
his detailed guide:
http://forums.civfanatics.com/showthread.php?t=534745
I can try to summarize:
- Settle 3 cities, then make National College
- open Tradition tree
- Build caravans ASAP and use them only for food to capital
- Get friendly with as many AIs as you can
- research civil service then education. Build universities in capital and through loans from AI
- build writer's guild soon in capital. pop writers for treatise and only 1 turn before end of golden ages
- After education, get astronomy if your capital has mountain
- build markets where you have time
- build artist's guild in capital and gardens everywhere you can. use artists only for golden ages
- If no mountain, go for Metal Casting, get all workshops
- use first great scientist for academy, keep all others
- finish tradition, then unlock right side of commerce
- go printing press, attempt Leaning Tower ( hard on deity ). get great scientist
- unlock rationalism
- Go for public schools tech, make schools with loans if possible
- research electricity and make sure you finish Oxford university at the same time you finish electricity
- get Radio with your free tech from oxford
- get "freedom" ideology" with +25% great people generation and Great people consume 50% food policies
- At this point you should have unlocked commerce and got it down to the buildings discount
- build Big Ben
- Go for plastics tech
- Build labs with money if possible.
- Check if AIs have porcelain tower. Start/ finish it if you will finish the game before that city will make another scientist.
- After labs, get chemistry and then fertilizer
- Get penicilin for more trade routes
- Now go for rocketry, then sattelites
- start apollo in capital.
- start popping great scientists
- Once appolo is done, start hubble. If you have enough faith, get it with great engineer.
- Get "buy spaceship parts with gold" in freedom.
- Start to buy spaceship parts as they become available. Get loans from the AIs, on deity they should have thousands of gold. On immortal they might have less for you to work with.
There you go.
Of course the devil is in the details, really good players have finished under 200 turns on good maps lol that's pretty crazy.
On immortal you will actually be slower because the AIs generate early workers slower and have less gold for you to take loans. However, it opens up different strategies like getting Temple of Artemis, Hanging Gardens and Petra, which the AI sucks at building. You can also basically guarantee you get Chicken Itza, Globe Theater, Taj Mahal, Leaning Tower and Eiffel Tower if you play right. When I play immortal games the AI can't build any wonder first, basically.
Anyway watch Acken's videos, pretty good times.