AI Civs competing with players

giskarduk

Chieftain
Joined
Dec 19, 2005
Messages
10
Hi all.

Played Civ 4 a few times now and read about the changes to the AI at higher difficulty levels. Im approaching the time when i can take the AI on at Noble difficulty since i do appear to beat the AI on a regular basis on warlord now.

I usually play on marathon these days, huge maps etc.

Thats the background, now for something ive noticed at warlord level that I want to talk about.

In every single game, no matter how far a head in the tech tree i appear to get. The One or more AIs always catch me up before the game ends, usually around the industrial era it happens. I dismissed this for several games but my last game left me with some serious questions.

Basically, you could fit all the remaining AIs territory inside my own empires territory. India was my closest competitor but only had half a dozen towns and only 1 above 15 pop and that was 20 pop. My empire had gotten so big the names started appearing as cityname/cityname and all where above 18 pop but smaller than 25 pop except for 4 towns i built to gain access to extra trade. There where about 8 pop because i built them late in the game. All on the same continent btw and the palace was right in the center of the empire. Corruption/wastage was held to a min.

Very few needed anything else building and most could turn out modern armour in 2 turns (to give you an idea of what they could produce and how fast).

My science was set between 70 and 80, i juggled it about when i needed a little extra cash. My culture was at 10 to 20 (depending on if i used that extra cash to make money or put pressure on the AI borders via increasing the culture).

My cities had everything they needed, nothing was holding them back.

So how does an empire with half a dozen cities of average size catch up to me in tech race ?

He was making about 4 gold per turn, i was able to make 340 gold per turn without causing any major slow down in my research.

The other thing i wondered about was the space race, india started to build stuff for the space race relatively late, i already had my ship half built when he started and I had my biggest and best cities doing the building.

Yet by the time the ship was finished, we where both down to the last item.

Even with his half a dozen cities, theres no way his cities could have built every piece of the ship all at once, he simple didnt have enough cities. The casings alone would have needed 5 cities to build them all at the same time and even then, theres no way his towns could build them faster than mine, he simply didnt have towns that good. His cities where too small to do it in less than 100 years.

Mine could build the biggest components in less than 50.

So how did he manage to catch up with me in the space race when you cannot rush any of the items the ship requires ?

Btw i used a spare city to build the space elevator, if i didnt he would have won.

Finally, i was trying to get one of the religions early and went for hinduism. 10 turns in to the game another AI got it first. The quickest ive ever had it at is consistantly around 40 turns after i start researching it, yet they got it within 10 turns of the start of the game. Even allowing for the AI starting with the tech before that religion, 10 turns is an all time record. I have never seen it picked up from villages yet, is that even possible at warlord ?

These are issues that leave me thinking Civ 4 has code that gives the AI a boost if the player gets too far a head. I have seen it happen in every game ive played so far. In the case above, india had to catch up a whole 6 techs to match me.

Giskard
 
This is possible, but I really don't know. Very interesting though, something worth researching.
 
yeah, I´ve noticed the same thing on noble where i had about twenty-something cities, china had about 4 cities and I´m leading the tech race and then suddenly they`re 5 techs ahead of me. only explanation i can think of is the AIs traded techs among each other and china/india used a lot of cottage-spamming to make a lot of money to finance techs, which doesn´t expain how he could build those parts so quickly, though.

giskarduk said:
My empire had gotten so big
He was making about 4 gold per turn, i was able to make 340 gold per turn without causing any major slow down in my research.

Finally, i was trying to get one of the religions early and went for hinduism. 10 turns in to the game another AI got it first. The quickest ive ever had it at is consistantly around 40 turns after i start researching it, yet they got it within 10 turns of the start of the game. Even allowing for the AI starting with the tech before that religion, 10 turns is an all time record. I have never seen it picked up from villages yet, is that even possible at warlord ?

Giskard

the gold per turn you see in the diplomacy menu is not how much he earns per turn, only how much he is willing to trade to you.

the fact that he was able to build hinduism so quickly is explained by the fact that he is a spiritual leader and had mysticism as a starting tech.

theoretically on warlord it is supposed to be YOU that gets the bonus, not the AI, but this doesn´t explain how the pc can sometimes catch up so quickly. if you win that easily on warlord, you should definately try,the next level
 
I'm glad it's not just me. I thought I was doing something wrong. I was used to Civ3 when I could pull ahead and STAY ahead.

Not anymore. You've always got to be scrambling to maintain that lead. But I've never had trouble building the spaceship first. The key thing is labs and to get that Space Elevator first.

Pick an equatorial city, and start building up its production a good hundred turns in advance. Also save up any late-game great engineers to rush the wonder.
 
Supposedly, the human player has this ability to catch up after being behind as well. If that's the case, I certainly have seen no hint of how this would be accomplished. I can definitely say that in the games I've fallen behind in, developing your civ and staying out of costly wars is definitely not the way to catch up, although that might seem inuitive. Also making war and conquering cities doesn't seem to be the answer, even if you can do it fast enough that the pillaging pays for your research. Whatever the magical formula is for catching up late, the AI's just happened to implement it in your game to perfection. I hope to see in the future how someone has found the formula for catching up and posted the solution in the Strategies Forum.
 
I have managed to get back in the game again, when I was seemingly far behind. This happens if you manage to research one or two expensive tech nobody else has and trade it to as many AIs as possible.
I have seen this at least two times on monarch (or emperor? don't know exatly), though at the higher levels the AIs are more reluctant to trade old techs with you, even for a juicy new hitech. At least this is my impression.
I one game i was like 10-15 techs behind, maintenance was killing me, and so on, the usual stuff if you overexpand, and thinking about giving up, and about 25 turns later i was on par in the tech race (economy still sucked :-)) and i thought, whoa I'm back in the game again...

I suppose the AI does its tech trading job even better than any human, since it probably looks for trading opportunities every turn. So I think it is enirly possible the catch up for the AI, even if it has a malus.

@giskarduk: You wrote, your biggest cities could build the biggest parts of the space ship in 50 years. I assume this was in the 1700s or 1800s and you don't mean 50 turns :-)
I never played this difficulty, but I think starting a space ship that early is uncommon for the AI. So It probably has just a good day :-)
 
I can't say I've ever seen what you're talking about. I've found that on Noble level games, once I get a pretty decent tech lead, that gap expands as the game goes along. I think it's because I reach Universities first, Observatories first, Oxford U first, etc, and each one kicks my science up a notch allowing me to expand faster. On Monarch/Emperor games, I've never seen it because I can never get that sort of tech lead. :p

If the AI is coming back at the end of the game, it's probably because it's out-commercing you. If you look at an AI civ in the late game, you'll see that their cities are surrounded by *lots* of cottages. If you don't have a good number of cottages yourself, you won't be bringing in as much income, and thus you'll get 'outscienced' with similar setting on the science slider. Also, with more commerce, the AI can run its science slider higher and still maintain a positive income.
 
Flak said:
Supposedly, the human player has this ability to catch up after being behind as well. If that's the case, I certainly have seen no hint of how this would be accomplished. I can definitely say that in the games I've fallen behind in, developing your civ and staying out of costly wars is definitely not the way to catch up, although that might seem inuitive. Also making war and conquering cities doesn't seem to be the answer, even if you can do it fast enough that the pillaging pays for your research. Whatever the magical formula is for catching up late, the AI's just happened to implement it in your game to perfection. I hope to see in the future how someone has found the formula for catching up and posted the solution in the Strategies Forum.

There are several ways ..I generally play monarch / marathon / huge maps, and expand like rabbits early on, to the point where I am only just about running 10% science and financially surviving.

Around 200 AD I hit my "Dark Age" (often running 0% science for a while) which generally lasts until around the point I get Currency. At this point Im totally dead last in Science, but always (well nearly always) manage to catch up.

Reasons and ways?

Well I've generally built the last city Im ever going to found, by now, and the AI has a lot of catching up to do. My cottages / hamlets etc are beginning to flourish. My military is generally huge in comparison with others (due to number of cities) and with the Civs I don't like (or who dont like me) I just constantly demand all their cash and gold per turn, which they generally oblige me and pipe it into science. Sell your spare resources (after trades) to the civs you do like and get on with..but be a dealer..get them hooked and keep upping the price every ten turns. Remember , you don't have to get on with everyone (I use to make this mistake). Don't waste money upgrading units just have a couple of military cities building new ones..and forget promotions, just disband them..2 1 star Macemen will beat 1 (upgraded 4 promotion) Maceman every time and didnt cost you anything. (ok there's the increased military cost, but increased military means I hardly ever have wars ..unless I start them that is..and if someone's attacks you.. well its extra cash from the pillages and city razes for my science fund :)

Later if one civ is still annoyingly ahead (aka Gandhi and the Indians) just declare war on them, with no intention of taking any cities..just send a "pillage army", i.e. your best defenders, to destroy all his "cottage" improvements. Cause diplomatic havoc with nations that have previously been friends..turn nation upon nation..( you can if you try hard enough)..bribe say Genghis or Monty to attack a peaceful builder nation with a military tech or 2..try to keep all the AI civs on a par with each other , while you keep getting better.

Just some ways to go about things, and the above strategy is not one I always use, just sometimes ..and hey I kinda like the dark age (feels right historically) and really concentrates the mind when you have to micromanage every single square of your empire

And I don't think the AI "cheats", at the end of the game , it just goes to extraordinary lengths sometimes...e.g. me and US in Space Race..he couldnt match my production..so (using a lot of spies..I always do..I observed) most of his cities starved to put max engineers and priests and peeps in hills (while his workers workshopped the grasslands), to try to beat me.

New York went from size 20 to size 12 (democracy in action?!), and similar thing happened in most US cities.

Another e.g. again Space Race..Chinese tech'd straight for it , to the exception of every thing else, from Ind Era onwards. Due to them having 3 holy cities + stuff like Angkhor Wat and Spiral Miranet, they were running 100% science , and their 10 cities could outproduce mine easily, I just couldn't catch them. So , quick check , "are they trading for Uranium" nope ..spies and subs out of danger area.."Whats that Glow in the sky Mommy?" bye bye Chinese..and Im at war with everyone..but I held off to win on score (and a wins a win), But really didnt like myself for doing it for the rest of the day.

Yes a wins a win , as they say.

Anyways, just a quick rant off the top of my head

DrewBledsoe
 
I notice as well that they tend to start catching up but I usually cerdit that just to being able to research techs faster and faster from about the middle periods and onwards. Once you hit that stage you start to advance pretty quickly.

In your case however, you probably should have just wiped out the Indians as soon as they started getting close. Given your advantage it doesn't sound like it would have been much of a problem. On top of that, they also tend to be pacifists and easy pickings in most games.
 
DrewBledsoe: Thanks for tips, i'll try some out in my next game which will be on noble.

Amelas: Yes i could have conquered the entire map but i wanted to win via a UN vote. Unfortunately the sides i was allied too became the strongest after my own empire. So they had the most votes and they divided their votes between me and india. Had I wiped out india, id have main enemies of those voting for me. It was a tough call to make given the type of victory i was hoping to achieve.

Still, i learnt to keep my friends small and my enemies dead in that game. Preventing friendly nations from growing too big prevents them from competing with me in the final vote. This gives them one choice, vote for me or an enemy.

I believe its possible to rig a game up to win such a victory by carefully chosing the AI nations at the start but ive never tried it. It is clear to me that random chance places a huge role in such a victory if you do not cheat.

All part of the fun though. :)

I did find it VERY useful to go back to settler level occasionally in order to test stuff without the pressure of being attacked.

Giskard
 
Well that was interesting.

Seems like building cottages as improvements to the land does help the cash flow and science. I was able to get well a head of of the AI and stay there by building 2 cottages per town and ensuring they where being used by the town. By 200AD they had grown pretty big and helped shorten my own personal dark age considerable.

Trouble is, AI workers on auto tend to replace them with farms.

I think the cities options to focus on certain areas seems to decide if they get built or not by the AI though because some cities still had their cottages at the end of the game where as others did not.

Clearly i need to pay more attention to land improvements because theres a lot of bonuses later in the tech tree for improvements that look useless early on.

Giskard
 
giskarduk said:
Well that was interesting.

Seems like building cottages as improvements to the land does help the cash flow and science. I was able to get well a head of of the AI and stay there by building 2 cottages per town and ensuring they where being used by the town. By 200AD they had grown pretty big and helped shorten my own personal dark age considerable.

Trouble is, AI workers on auto tend to replace them with farms.
I think the cities options to focus on certain areas seems to decide if they get built or not by the AI though because some cities still had their cottages at the end of the game where as others did not.

Clearly i need to pay more attention to land improvements because theres a lot of bonuses later in the tech tree for improvements that look useless early on.

Giskard

Just go into Advanced / Options / Game screen , and tick "automated workers leave existing improvements".

This will stop the little idiots from deciding your town (which took a millenium to grow to that size) is prime farming land :)
 
Well i don't know about the production of their spaceship, but as far as indians keeping up with you in tech it's probably related with the fact that technologies become cheaper (less beakers) to research with each contacted nation that has already researched it. Theres a post in the strategy section that explains it more fully but basically they didn't have to pay as many beakers to tech their space ship because you did all the ground breaking work already :)
 
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