I've recently released a new mod called "Hard Mode: Marriages & Alliances Reborn" that restores this functionality.

@Rute_Of_All_Evil unfortunately this mod doesn't really work anymore. There's now a negative opinion modifier "reluctant to agree to marraige unless it results in an alliance." Since this mod makes most marraiges unable to make alliances, that means you can't really marry off children easily anymore.

Thanks to this mod the game is getting closer to the difficulty of CK2. Thx ;)

@Rute_Of_All_Evil I can say I think this is one of the best mods for the game. Currently seems to be working just fine with 1.13. I'd love to see it updated :)

this mod not effect to ai? only player?

Found error in localization. "setting_no_truce_break_notifications_ truce ", "setting_no_truce_break_notifications_truce_desc". Second "truce" is redundant.

I would love an update to this mod.

This is a really awesome mod, thank you for this. I would like to report a (probably) unintended interaction where a truce gained from a marriage counts as "recently waged war" negative score to offer vassalage decision.

I wonder if there's a way to fix that so that it actually checks whether a war took place instead of just looking at truces

@Rute_Of_All_Evil - can this mod be added or removed to an existing game? Thx

Any chance of a compact with MB+?

As I remember, in EU4 it was hard to convince the AI to participate in your offensive war. Could it be possible to implement same mechanics here? Maybe even a penalty for each participation depends on war score?

I betrothed my adult heir to the child daugther of a neighbouring ruler. When my character died shortly afterwards and I took over with the heir, the truce between the two realms were broken, even though I'm now playing the character still betrothed. Not sure if working as intended or if there's a mod conflict. Is it supposed to work that way?

When AI makes alliances are they labeled only as ''negotiated'' or ''through marriage with__''.?Because in my game I see AI makes ''negotiated'' alliance but haven't seen the ones ''through marriage''.

Great mod! Any way to make an option to get negotiating alliances little more difficult? So AI is less inclined to accept (nor prom player bor from another AI ruler).

@Geeky Sure, I'll do my best :)

@KingSkunk Aww, thank you! I'm glad you like them! Yes, right now all my mods work together, as none of them touch the same files. Using this one along with Defensive Alliances is no issue. ^^
If eventually there are compatibility issues, I'll make a patch for them and link to them in the description. So at least between mods I make, you can look at the description and if there's no patch there you can safely assume they work together fine.

Hey Rute, love all your mods, I'm assuming they all work together without any compatibility issues? Just glancing through the files and coding and they to my novice eye their doesn't seem to be any issue with me using this with Defensive only Alliances.

Can you keep on trying to make AI still consider the potential alliance when making marriage decision?

@Rute_Of_All_Evil ouah that would be very cool :) Hope you'll find some time. I'll follow this closely !

I'm here! Busy summer, but I'll be updating for the new version soon.

@radwilly1 Oh no. D: I'll look into it. I'll be updating as soon as I can, probably the next couple of days, and hopefully it's easily fixed.

@Carni No and yes? The changes to the defines make it so it applies to everyone, no way to separate it. But theoretically I could manually make marriages create alliances when it's an AI. If I got some time, I'll look into it.

@Jeron I once made a sort of "Desires Potential Alliance" modifier when trying to make the AI be smarter about marriages...since it didn't seem to help, I scrapped it. But maybe I can make a submod for people who want it.

@Geeky I wish, and I tried, but if it's possible it's beyond my scope of knowledge so far. I may try again in time, and try asking modders who know how to do more advanced stuff in GUI, but I can't promise anything.

@Rute_Of_All_Evil I think that the mod is broken in that I can't request alliances even after I've married children to the children of another ruler. I think this has something to do with the hostages mechanic.

Would it be possible to create a rule to apply the effect of the mod just for the player ? To add challenge without break the AI

Losing the "Desires Alliance" marriage acceptance bonus has been painful but I'm not sure what to do about it

can you edit the mod to still show the strength of the potential alliance that can be formed through coalition and make AI consider it in marriage decision

@[Army of Two] AXIS
It's in the works. It will be a new mod, as I think it's outside the scope of this one, but I'll of course make sure it's compatible. :)

@AshDragon
Honestly I myself am still trying to figure it out. When I messed with the Negotiate Alliance interaction I looked at the modifiersa lot, and tweaked them a number of different ways... I see what the AI is SUPPOSE to want, but then the AI just does...whatever. It just keeps doing stuff I don't really get. The HRE and Hungary keep snubbing each other. Feudal rulers get into alliances with their vassals, even though there is a modifier that should make that impossible!
It's just really weird. x_x

@witchnight
No need to apologise. :) You don't need a new game, but unless you use the Gamerules Gadget mod (linked in the description) to apply the mod's game rules, it will only disable the automatic alliances. So truces will not be applied.
You can disable Gamerules Gadget afterward, it's just the only way to change game rules in existing saves.

does this require a new game? sorry for the question but no one else had this answered in comments. this doesn't seem to appear at all in my save game

possible to have an option where alliances are only defensive?

how does AI decide to change truce to alliance?. I see sometimes AI have many alliances, or many truces, but cant get the logic

Thanks for the quick fix, really appreciated! :D

@Grumbledook Thanks for letting me know, there was a slight change to that check for 1.9.1 and I hadn't changed it. Should be fixed now. ^^ Also that's awesome, I'm glad you like it!

There's a -25 acceptance penalty applied to forming alliances due to "ongoin feud" even though there is no feud. Tested and it doesn't seem to be caused by other mods.
Apart from that: Really love this essential mod. Great work! :D

@Rute_Of_All_Evil - you are awesome!! Thank you

@TheLoneWanderer There was indeed an overlap. It was simple enough to patch, though. ^^ You can find the patch here: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2985404322
And you're welcome! :D

@Rute_Of_All_Evil - I use the mod "MND Balance: Making empires actually work for it...

Based on my looking at the files, I think there is overlap with the "negotiate_alliance_interaction".

Is this something that you could patch? -thank you!

@澪贰 @MasterOfU Thank you for letting me know, I've updated with a fix. :)

as has already been said, this mod is preventing all grand weddings, was fine before 1.9.1 but now its preventing grand weddings

This mod seems to lead to can't click the "grand wedding" activities. I promise to marry, but not click start wedding activities. My native language is not English, don't know the author can read this passage.

Yeah I really really want all alliances to be a promise to defend each other, not help out in iffensive wars... that should be a whole negiotiations thing to be honset.

Like I said, I made the HRE sail their whole army to Iceland, to help me subjugate them.
Thats basically a cheat code and it is completely insane for the HRE to do so.

But a pledge, in marriage, to help each other in need, and to tell everyone that we protect each other so dont attack.. thats a lot more sane.

Also makes blobbing harder for me as a player.

@CaliBlueBear ^^ Of course, no one's born knowing this stuff. I still appreciate the suggestion.

@[Army of Two] AXIS Hmm...it's probably not impossible. Could maybe change the Call to War interaction to filter certain alliances. But then you'd have to decide in which cases it's Defensive, teach the AI to decide it, etc.
If you just want all of them to be defensive though that might be doable?

Is it possible to make alliances only defensive?

It annoys me that I can exploit an alliance to blob... even got HRE to sail 8000+ men to Iceland just now in my offensive war.

Ah ok. Thanks for the explanation. I am not a modder, so I wouldn't know the systems limitations.

@CaliBlueBear Sadly it can't be done to my knowledge, as the option to turn off alliances if in defines and is directly connected to game code. If I turned it back on, I wouldn't be able to specify a choice for the player or AI or anyone to get a truce instead. :( CK3 is very moddable, but unfortunately still has it's limitations.

Based, hope it works out and you can get them to do alliances

@CalieBlueBear that would still result in the issue of AI not marrying their children on to adequate matches after a point because of the too many alliances modifier, so while they would have ai, it would negatively affect their matchmaking. At least I think.

Maybe the "few AI alliances" issue would be resolved if the logic were reversed, i.e. marriage alliance is the default and the player can opt out with a truce instead?

@CaliBlueBear Anytime :)

@Sloppy Sausage Yeah it seems the AI makes few alliances. I found that changing ai_frequency on the interaction helped a little but still not quite as much as I would like, and they still mostly make alliances with their family members.

I might tweak with AI requirements for the interacting, right now I'm also messing with marriage modifiers to try and see if them picking a spouse more based on a potential alliance will help. If nothing else works I might try and make an on_action/event for marriage to try and force an alliance-less AI seek one. x_x

But, yeah, that's pretty much what I'm working on right now, so I don't have any tips as I'm still futzing around with it to try and find something that works.

Only problem with this is that the ai basically doesn't form alliances any more. I tried to add an ai_check_interval to the negotiate alliances character interaction as well as adding a ai_will_do and nothing worked. I can't get ai to still form alliances on a reasonable basis, and while I like the mod and don't think alliances should be created from the marriage alone, I also think that the ai should form alliances. Any tips on how to fix this?

Thank you!

@CaliBlueBear As of the new update, yes it is. ^^

Achievements compatible?