Caravans > Great Library

Cromagnus

Deity
Joined
Sep 11, 2012
Messages
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This has been mentioned in various strategy guides, but I think it's worth making the point outside of any one guide. Caravans = awesome on Deity.

I did some number-crunching last night, and maybe I'm wrong on this, but here's my conclusion. It doesn't matter that you can't get the GL on Deity. You wouldn't want it anyway.

The Great Library is awesome at Emperor or below, and *ok* at Immortal, but not really all that great on Deity since BNW came out.

And, the good news is, on Emperor or below, you can get the GL.... if you only go for it when conditions are right. I'll elaborate on how to ensure you get the GL on Emperor or below at the end.

For now, let's talk about why you don't want it on Deity.

The Great Library costs 185 hammers on Standard. It yields:
* one free tech
* 3beakers/turn
* 1 Great Scientist point/turn
* Two great works of writing slots
* A maintenance-free library

In the best case scenario, you research Calendar while building the GL, and you use the free tech to open Philosophy (175 beakers)... the most expensive tech you could realistically get so early.

So the GL yields, at most, 175 beakers + 3 beakers/turn and costs 185 hammers. What else could you get for 185 hammers so early in the tech tree?

Answer: Two caravans. (150 hammers)

Two caravans on Deity yield (on average) 4+4=8 beakers/turn in the early game, and a whole lot of gold.

At 8 beakers per turn, 2 caravans yield more tech after 40 turns than the GL.

(175 + 4*30 = 295.... (4*2)*30 = 320)

Caravans start to diminish in tech yield over time, but the impact of 3 beakers/turn is negligible by the time caravans peter out. And this assumes you focus on tech! (I'll get back to this)

Also, for 225 hammers you get a library + 2 caravans... now you're outperforming the GL even faster, and the gold from the caravans more than makes up for the cost of the library. (This is all a slight oversimplification, because you get the effects of the three builds staggered over time, but it's close enough)

On Immortal, you get more like 5 beakers/turn for 2 caravans, so the GL ends up being roughly the same as 2 caravans + library. So it's a toss-up. On Emperor or below, the AI won't be out-teching you long enough for caravans to help. So, on the levels that you can *reliably* get the GL, it's worth getting. Kind of.

The conclusion you should draw here is that caravans on Deity are VERY important.

Now, to be fair, the Great Library gives you something more than just beakers. If you're willing to pay the opportunity cost, you can put out the National College by turn 55, and the advantage of a very early National College at the lowest build cost (1 city) is somewhat significant. It could shave 10% off the time it takes to get Education, and that translates to at least 10% off your victory turn, imho. And it's not unrecoverable... you can rush-buy a settler and have it ready to plant when NC finishes, and build 2 more settlers... all very risky without military units, but feasible...

However, you have to really hamstring yourself to focus exclusively on tech like that. You can't build units, or a monument, or a granary, or a settler, or a worker. If the only thing you've produced by turn 50 is 1 scout, 1 worker, the GL and the NC, you're screwed on faith, culture, growth, scouting, expo and defense. One barbarian can ruin your day.

In other words, the GL is at best a high-risk proposition even if you're 100% assured of getting it. (Unless you're the Shoshone, in which case you can reliably get the GL 100% of the time even on Immortal, 50% of the time on Deity, and still have a nice pantheon, culture output and capital, but I digress)

Caravans allow you can shoot up any of the early tech trees pretty fast without building a library. Sure, you still should get Universities ASAP, but it makes it much more feasible to to go down the other tech paths a bit first. You can get Optics, Currency or Ironworking before Philosophy, and still catch up to the AI.

If you're still 100% set on going for the GL, these rules help. Don't go for the Great Library unless you think most of the following apply to you:

1) You're the Shoshone or Egypt
2) You have at least one 3-food tile + two 2-food/1-hammer tiles in the first two tiers
3) You settled your capital on Marble and got Masonry through a tech ruin
4) You got Writing OR Pottery OR Mining from a tech ruin
5) You immediately started building GL as soon as you teched Writing.
6) You have multiple forest tiles in the first two tiers and a stolen worker chopping forest by turn 26
7) You have a stolen worker building mines/farms by turn 15
8) You built a worker right after your first scout
9) You got a culture ruin and chose Tradition and Aristocracy
10) You got a faith ruin and chose Monument to the Gods
11) You settled on a hill

Just to be clear, NONE of the above is as important as the worker steal + worker build and having Mining before you start building the GL.

Having two workers by turn 20 is way more effective than +15% to Wonders or any of the other stuff.

And then there's playing as the Shoshone... if you follow these guidelines, you can get the GL virtually every time on Immortal or Below, and 50% on Deity with them.

However! For Deity, the worker steal must be early! Your number one priority is to get that worker home by turn 17. The GL typically goes on turn 32 on Deity, sometimes as early as turn 25. A worker steal on turn 6 gets you the GL by turn 29. A worker steal on turn 17 gets you the GL on turn ~33. The GL will pop by turn 32 at least 80% of the time. So, you need to get that worker home EARLY.

Ruin priority order: Tech, population, culture, faith. If you get less than 4 or didn't get Mining, Writing or Pottery as a free tech, don't start building the GL... just play as normal.

And, of course, you're not going to win when it goes on turn 26 unless you got two of Mining, Writing and Pottery as free techs, AND a really awesome start position. You can reduce the chance of this happening a tiny bit by being at war with someone who has Writing. Stealing the worker will slow down your neighbor, and being at War will make him shift priorities... and if you're lucky, he's the one who would have gotten it super-early... hey, it's a 15% chance. ;-)

But, the good news is, the Shoshone are so OP that even if you miss the GL with them you still have an awesome start.

But, of course, why go for the GL in the first place on Deity? :-D
 
I recently had an Immortal game where GL was built on turn 25. At least it is early enough where if you are dead-set on getting it and fail to do so, you can just load up a new game :lol:
 
You forgot to mention KSM/Grand Mesa Isabella :lol:
Shoshone's UU does allow them to pick bonuses from ruins... but you cannot pick which tech to get :lol: a lot of the time you'd just get archery or whatnot instead. :lol:

And Shoshone is not OP... PFs cost way more than scouts and sometimes you just want a normal scout... so even if you get to pick bonuses you might end up with fewer ruins just because of the extra build time. I wish they'd had it replace the warrior instead (why build warriors when PF are a clear replacement?) Scouts are like half cost the PF and I'd like to have the ability to build them fast.
 
I recently had an Immortal game where GL was built on turn 25. At least it is early enough where if you are dead-set on getting it and fail to do so, you can just load up a new game :lol:

Yeah, it *can* happen on Immortal, it's just rare. I'm pretty sure when that happens the AI got a tech ruin. I've never missed on the GL in 9 attempts with the Shoshone on Immortal though. My record on Diety is 5/9 when I get an early worker steal, so slightly better than 50%. Admittedly I was *retiring* (EDIT) when I didn't get it, but only because I wanted to test the theory. I could have played those games out and won.

I now have 5 Deity Shoshone starts with the GL if anyone wants to try 'em out :lol:
 
You forgot to mention KSM/Grand Mesa Isabella :lol:
Shoshone's UU does allow them to pick bonuses from ruins... but you cannot pick which tech to get :lol: a lot of the time you'd just get archery or whatnot instead. :lol:

And Shoshone is not OP... PFs cost way more than scouts and sometimes you just want a normal scout... so even if you get to pick bonuses you might end up with fewer ruins just because of the extra build time. I wish they'd had it replace the warrior instead (why build warriors when PF are a clear replacement?) Scouts are like half cost the PF and I'd like to have the ability to build them fast.

Oh, yeah, Isabella + KSM = GL even without any of the other stuff, but the odds...

Does Isabella have a higher than normal likelihood of starting near a NW? IE it's worth moving your settler until you find it?

I agree about sometimes wanting scouts, but Shoshone is quite OP, sorry. Growth ruins + virtually guaranteed pantheon is huge.

And yes you don't always get Mining, Pottery or Writing, but with 2 tech ruins the chances are > 50%. And if you don't get one of them, you just don't go for GL. It doesn't ruin the start, because by then you haven't started building the GL.
 
Growth ruins and wider borders, which means more special tiles within borders. Wheat 3 tiles away? No problem!

Spain is a good comparison, but it is easier for Shoshone to abuse ruins than it is for Spain to win the Natural Wonder lottery.
 
Growth ruins and wider borders, which means more special tiles within borders. Wheat 3 tiles away? No problem!

Spain is a good comparison, but it is easier for Shoshone to abuse ruins than it is for Spain to win the Natural Wonder lottery.

Abuse is the right word. I'll have to make a screenshot of my notification log for my last GL Deity start. I got a 3rd tech ruin late, on the same turn I finished the GL and Calendar. It was crazy, like:

Turn 32: Pocatello has completed The Great Library!
Turn 32: You have discovered Calendar!
Turn 32: You have discovered Philosophy!
Turn 32: You have discovered Bronze-working!

I had already gotten Pottery and Mining as free techs.

So, basically 5 free techs by turn 32... :crazyeye:
 
Please fix the Great Library. Its horrible. It shouldn't be gone in 40 turns. Totally pointless.
 
Please fix the Great Library. Its horrible. It shouldn't be gone in 40 turns. Totally pointless.

It's gone in 30 turns, that's the real problem! If it were never less than 40 you could get it!

I tend to agree, but how do you fix it? Make it less effective?

Short of moving it to Philosophy, I'm not sure how you fix it. And that would break the whole "free Library" thing. Its place in the tree is important.

I wish it was like PT, which requires rationalism... but I'm not sure how that would work.

Everything I can come up with just ends up being easier for the AI than the player... The problem is, any wonder you can get after 2 techs is easy for the AI to get, and most of the AI favor Writing, because, well, let's face it, focusing on tech is a good strategy.

So, what do you do?
 
I think they should diversify the starting techs that diety AI recieve such as starting Monty with mining instead of pottery. That might open it up a bit.
 
I don't mind how GL currently is implemented. I mean, if it were a guaranteed grab every game, then everyone would grab it. Every single game.

Besides, I'd argue Hanging Gardens is better, both for the player and the AI, in the long run. The early GS points from GL are nice, but outside of that, not a big deal (as was the point of this entire thread).
 
Besides, I'd argue Hanging Gardens is better, both for the player and the AI, in the long run. The early GS points from GL are nice, but outside of that, not a big deal (as was the point of this entire thread).

Not kidding. On Deity the AI which build Hanging Gardens WILL WIN unless it gets immediately killed by Assyria/the Huns.


I think they should diversify the starting techs that diety AI recieve such as starting Monty with mining instead of pottery. That might open it up a bit.
Actually the Deity AIs are all already starting with the whole tier1 Ancient Era techs: Pottery + Animal Husbandry + Mining + The Wheel.
And the free starting Scout as well as 3 Warriors will nearly make sure they find a tech ruin too.

;)
 
The flaw here is that you consider them to be mutually exclusive yet they are not. On immortal, I would get GL and rush-buy trade caravans anyday over the above and I would do the same on deity was it not for that GL is always out too early on standard speed.

In addition, there is no guarantee that you will have an AI within 10 tiles for caravans. This is particularly problematic.

Lastly, internal food routes and international Incoming trade routes (aka neighbors with only you that is within 10 tiles will send their caravans to you). This offset the value of BPT from your own trade routes as well as increase the value of a jump-tech bonus to get either a clutch wonder or an early NC.


Long story short, GL provides something nothing else does. Even though the raw number of BPT from trade routes and hammer cost looks like they're so much better, the truth is that in an ideal scenario, GL would still be used for about any turn-to-victory optimal strategy. Sadly, it's not even remotely reliable, even as Pocatello to get it on non crooked settings.

The real relevant thing is whether its worth going writing as 2nd-4th tech and it really isn't anymore if you have a nearby AI to trade with. A trade route will get you an easy DoF for loans and with everything being so much harder to build due to gold starving in early game (compared to GnK), you are often best to just do pottery/AH/all lux or resource techs -> philosophy as your cap hammers will be spent between settlers and caravans and there's really no need for a 2-3 BPT early library anymore. Caravan's alone allow you to tech faster than you can build for a good chunk of turns.
 
I've never had a Barb pillage my Great Library.

Do people really send their Caravans out into the world initially? I'm generally not pleased if I have a neighbor close enough and I'm not going to run a Caravan long distances through darklands or fog. I'm usually shuttling food from city to city until the Renaissance. Do people grab Sailing early, even if not coastal, just for the trade route possibility? I'm curious.
 
On Immortal, it takes ~75 turns for the AI to clean out most of the barbs. I avoid sending out TR's until then unless I have a unit I can "waste" guarding the route. Also, Immortal TR give very little science, typically about 2bpt and this diminishes very rapidly so libraries are generally better for science that TR's. TR's on Immortal should take a slightly lower priority that on Deity, their greatest value is the DoF that seems to always follow them. I will often build a TR. leave it idle, then crank out my settlers if I have a hammer heavy start and I am killing some time to reach 5 pop. I send the TR immediately into the neighbor I settled near to get a DoF instead of a DoW. The ~2bpt is about the value of the library I did not build while building settlers, and lets me research writing while building settlers. This typically gives a T85 NC which is perfectly fine for sub 290 wins.

I never build the GL in my cap even when sand bagging on Emperor or below, you can get it in an expo easily enough, and the infrastructure is more important
 
My problem with the Great Library is that it was built in 300BC NOT 3000BC! Its gone before the Pyramids for gods sake.

If the devs still want to give the AI a freebie tech on t30, I don't care, just find another means and push GL back to make it a better historical fit.
 
I see what you mean now. Yes, there are a few different buildings/units around that time that are a bit "off".

My own annoyance is with Byzantium, a post-classical era Civ, yet its UU's show up in the ancient/early classical era.

As if the game wasn't large enough... they could just add another era :)
 
I see what you mean now. Yes, there are a few different buildings/units around that time that are a bit "off".

My own annoyance is with Byzantium, a post-classical era Civ, yet its UU's show up in the ancient/early classical era.

As if the game wasn't large enough... they could just add another era :)

Cataphracts are a little off too, but since Byzantium is basically Rome, I consider them horse 'legions'. :)

Swapping The Oracle for and The Great Library would be perfect, even if you gave a free tech with oracle and a free policy with GL.
 
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