Difficulty --- Deity
Scenario ---- Beta Centauri
Civilization ---- American or any other civilization
Once the game has started:
Change your government to Monarchy to start. Defend with your 1st Modern Infantry. Barbarians will most likely attack you, which in time is good for you as it’ll upgrade your unit making them better defenders.
Go into the city screen and immediately press which will switch your city from producing science, (which you don’t need because you have all technologies), and you start producing gold. Next go customize your workers, putting some on food, some on tech, and some on gold. Then change what you are building and build a temple. Once you’ve built the Temple, build the Cathedral.
At this point you should get your first Great Person or be close to getting them. You should settle any Great Person, unless it’s a Great Builder. In which case you should use the Great person to complete a wonder for you. Magna Carta should be the first wonder you build.
Next you should build a Courthouse, then a Market, then a Bank.
Once you have 100 gold and you earn your settler, use that settler to build a new city. In this city you should go in the same order building a Temple, Cathedral, Courthouse, Market, then a Bank. You should also immediately change from science to gold. Also remember, if you can’t settle a Great Person in your capital, move the Great Person to your second city and settle them there.
At this point you should build 2 more modern infantry for each city, and combine them to make an army, you should build 1 Artillery unit that will help defend the city. Build a road between each city. Once other civilizations start bothering you, defend with the modern infantry but use your Artillery to fight the enemies Artillery.
Once you have those defensive units in place, you can start building wonders and buildings as you desire. What you really need to do, is build the Manhattan Project so that no other Civilization has nukes but you. Also, make sure before you really start to produce units that all buildings are built in both cities, don’t be afraid to use your gold to help build buildings either.
Once you’ve got all buildings built in both cities, start mass-producing Flying Fortress or, if you’re not playing the Americans, Bombers. Once you’ve got three combine those into wings. Once you’ve got 8 wings of bombers, use one city to build Modern Infantry, and once you’ve got 5 armies of those, stop producing bombers and modern infantry and instead build Tanks in one city and artillery in another. 3 armies of each of those and you are ready to rock and roll!!!!
Keep your artillery with your Modern Infantry, and keep your army nearby also. Take your bombers, you should have at least 10 wings, and just attack the nearest city. You may lose a few wings, that’s ok though, have your 2 cities go back to producing bombers. Your bombers should whittle away and finally destroy all opposition in the enemy city. Once the next round starts, use your bombers again, if your bombers are no longer able to attack then it’s time to use your tanks to take over the city.
Once you’ve taken over a city, the first thing you want to do is build a temple, buy it, then start building a Cathedral. Then next round you’ll buy the Cathedral and start building a Courthouse. Next round buy the Courthouse and what you build after that is up to you, though Markets and Banks are a good way to go. By doing this you are increasing your Culture and chances are you’ll start converting cities over with your culture. Also, don’t forget to build roads connecting every city that you’ve taken over.
Anyways, dock all Bomber Wings in your new city, including new ones your 1st 2 cites have built while fighting, along with all your tanks, Modern Infantry, and Artillery. Leave at least 1 army of Infantry in your new city before you start to attack a different city, though I always found it to be a good idea to leave 2.
Pretty much what you’ll be doing is rinsing and repeating. Have your bombers do almost if not all the city battle and then let your ground troupes take the city over. At any point you can stop for a few rounds to replenish your army and then start attacking again.
I’ve found that after taking over an enemy Palace they will normally want to make peace with you, though sometimes there is an exception. Also, if you know where an Enemy Capital City is, feel free to go straight for the capital.
Plus you shouldn’t have to use your nuke at all. But there you have it, it may take some time, but when I played this, I felt like I was playing on Chieftain difficulty, I completely dominated the whole game, I could have won either economic or the culture victory, and that does get annoying because they tell you at the beginning of EVERY turn that all you have to do is build .
I will say that this may not be the quickest, but I have yet to lose a Deity game using the aforementioned strategy. It's all about culture and gold, and everything else follows.
Alternate Method: (Thanks to Spanish Assault)
Follow the directions from the guide but instead of mass producing Flying Cities and attacking other civilizations just alternate between building Modern Infantry, Sherman Tanks and Artillery and defend your cities. I settled a third city as well and built up my culture using the same method for the first two cities. Make sure you have each unit defend the city by pressing . Also be sure to build a Wall to add to your cities defense. I was able to fight off all attackers with little issues. Keep using gold to speed up the build of each unit. Don't forget to save often. After around 2450 AD the game will tell you that 5 turns are remaining. Since your culture and gold is built up, you'll win and it will count as a Domination victory.
**DO NOT BUILD THE WORLD BANK OR UN WONDERS. BUILDING THOSE WONDERS WILL END THE GAME AND GIVE YOU A ECONOMIC OR CULTURAL WIN**