[NFP] [1.2.10] AI Peace Deal Bug/Exploit [FIXED in 1.2.11]

[blackbutterfly]

This happened in our multiplayer games as of the latest patch today (27th Dec 2020). The AI was losing the war and might have lost 2 cities, but gave away 9 of it's 10 cities...

As a workaround in MP don't play against AI.

BTW I love your avatar. I'm a huge Alpha centauri fan! (I started Civ on SMAC)

 

[Abaxial]

I found today that after taking one city off Egypt, all the other cities were red-line items and blocked any deal. Then I captured a second city, which incidentally was a former CS, and now all cities could be traded away.

 

[Finvola]

I had no idea this bug even existed until reading this thread. I just tried it and it works. I'm playing as Vicky and entered a joint war with Kupe against the Inca. I hit their walls a couple of times with frigates and he asked for peace. I threw one city in there for the peace deal and he gave it to me. I didn't even do anything other than hit his walls a couple of times with frigates.

 

[blackbutterfly]

@leif erikson Mods - merge threads? -> [NFP] - [1.2.10] AI Peace Deal Bug/Exploit | CivFanatics Forums

 

[leif erikson]

Moderator Action: Merged as requested.

 

[HiRezAudio]

This happened in our multiplayer games as of the latest patch today (27th Dec 2020). The AI was losing the war and might have lost 2 cities, but gave away 9 of it's 10 cities in the peace deal to one of the human players after its military strength had dropped! Almost all the remaining cities had medieval walls and would have taken scores of turns to conquer, if at all. Needless to say the game is a foregone conclusion now, which is a shame.

It's been this way for a while now - at least since the previous 'free' update, if not earlier.

 

[PhalseDemeise]

I would like to confirm, exploit has been around since release, and can be reproduced in 100% of games via various actions.
Sometime AI's will hold out until your power is greater or you obliterate their army.
You might have to surround a city, or even capture one or more cities.
I've had games where a distant AI declares war on me, neither side makes an effort to attack and they still give up all cities.
Sometime they do it for free
and sometimes they want all your gold even per turn, but since your absorbing their economy next turn even that is worth it
But if you wait long enough the outcome will always be in your favor.

I often wondered if leader traits and war weariness feed into their willingness to cede

In conclusion: Its been around since release, we're 2 major and several mini expacs in (basically the lifecycle of a game). I am not hopeful this will get fixed, maybe in Civ7

 

[PiR]

In conclusion: Its been around since release, we're 2 major and several mini expacs in (basically the lifecycle of a game). I am not hopeful this will get fixed, maybe in Civ7

That's bittersweet. Sweet because I will continue getting many cities. Bitter because it won't feel right.

 

[blackbutterfly]

I would like to confirm, exploit has been around since release, and can be reproduced in 100% of games via various actions.

Are you sure it was present since initial release?! I don't think so.

I always like to drive a hard bargain so I've always claimed as much as possible from the AI in trade deals. Yes, initially when declaring peace the AI may capitulate cities, but that's to be expected if you obliterate its military.

Since the last several updates this has become ridiculous. (Since Gaul & Byzantium?)
But in part cos with Dramatic Ages sometimes the AI trading their cities is meaningless. With dramatic ages, you can rarely keep hold of them. (I usually play with Dramatic Ages on by default now).

But what sometimes happens is instead of absorbing those cities back into the AI's empire, in Dramatic Ages they all fall into free cities along with the AI.

 

[meehocz]

I can confirm this behaviour. In the last game, I took this way three other civs and became a unbeatable supernation on deity. They always gave me all their cities but capital, but their capitals soon flipped due to loyalty from nearby cities and were counted as captured capitals for domination victory.

But I've found another exploit - you must have few empty great work slots, little money and an other civ that has great works. You can buy their great works for all your gold, but again, you have to press the Make this deal more equitable button. AI overprices your act of giving all gold and will sell you all great works for for example 25 gold. Then, if the civ has also gold, you can trade the great works back to them right away, but this time for standard price, i.e. 400 gold / great work. Then buy builders or something, until you have little money again and if the AI has still enough money, you can repeat this process until you gain all his gold.

These thing are funny and I am always happy when the AI does it, but it changes the strategy and I would rather not have this opportunity. One would say So dont exploit it, but it's very temptating

 

[PiR]

Wow, I will check that about the great works. Does it work for relics?

One would say So dont exploit it, but it's very temptating

Totally agree. If the game allows it, it's too temptating. Some can say exploit is a form of cheating but I could say the same about the AI with all the advantages it has on Deity, it's close to cheating (more settlers at the beginning etc.), just because it's not smarter. So I'll take advantage of anything the game lets me do, and I'll wait for it to be fixed.

"A la guerre, tous les coups sont permis."

 

[meehocz]

Wow, I will check that about the great works. Does it work for relics?

Yes, it works also for relics and they have even higher price, especially if the civ is considering a religion victory.

I totally agree exploiting like this is not cheating, for me it's a form of AI dumbness and in this case also a bug.

 

[Fryl0ck]

This is a huge, game breaking bug, at least in MP without all players human (which is all I play).

A simple fix would be just to disable “make this deal more equitable” for peace deals.

 

[blackbutterfly]

It looks like this bug/exploit has been fixed!

Though it seems to be at the expense of "Make this deal equitable" button not working again. Now you have to guestimate what the AI will trade, which is not good for OCD.

(Anyone else want to verify this?)

 

[PiR]

I confirm for the guestimate: https://forums.civfanatics.com/thre...le-broken-no-counter-proposal-from-ai.666873/

 

[The Highwayman]

It looks like this bug/exploit has been fixed!

Though it seems to be at the expense of "Make this deal equitable" button not working again. Now you have to guestimate what the AI will trade, which is not good for OCD.

(Anyone else want to verify this?)

I can confirm "Make this deal equitable" does not work in the current version.

 

[HiRezAudio]

I have a saved image that really seems to sum this up completely: