/r/EU4mods

Photograph via snooOG

All things EU4 Mods related. If you are new to modding or want a place to share your mod this your place.

Feel free to ask questions on developing a mod, getting feedback, or even ask if a mod already exists.

  • Share mods
  • Get help with mods
  • Find new mods
  • and more

Rules:

  1. Please flair your posts.
  2. Please keep posts related to EU4 mods
  3. If you are forming a mod team here, you can't just be the "idea guy"
  4. Please follow reddiquette
  5. If you are adverting a mod, please don't do it too often.

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/r/EU4mods

3,483 Subscribers

2

Modding Ideas Problem

Hi, I hope someone can help an idiot newbie.

I'm trying to edit the ideas in a mod (literally just copy-pasting a modifier from the vanilla ideas into the mod), and when I do all the ideas in each group in that file (in this case all the mil ideas) show up twice. This is not just a graphical bug just showing the icons twice, but every idea is there twice. For example I can pick Quality ideas, pick all 7 ideas in order as normal, then pick them all again. The bonuses do show up twice as well,

This problem persists when I go back to the unedited backup file, so I'm not sure how that's even happening. Shouldn't that remove the cause, and therefore the problem?

0 Comments
2024/12/02
16:41 UTC

3

Custom Map Modding - Terrain

I created a custom province map that doesn't crash but the moment I add a terrain map it crashes when 'creating trees'? I made sure it was indexed and using the correct color values and I am still unsure what to do.

2 Comments
2024/12/02
12:10 UTC

2

Elder Scrolls Universalis - Iliac Deities

1 Comment
2024/12/01
12:21 UTC

1

is there a proper mod that allows you to change unit model routinely like in Hoi4?

One thing I like in Hoi4 is to customize the model of my division.

However I cannot seem to do that in EU4, and I really like the early Samurai Models of Japan, the one with the masks and heavy armour set, is there anyway I can change that?

0 Comments
2024/12/01
09:22 UTC

1

Another religion with Protestant Aspects

How do you create another religion with Protestant mechanic without "removing" one from base game? Everything i tried causes the game to crash whenever i try to pick aspect

1 Comment
2024/11/25
20:18 UTC

1

How do i change advisor portraits?

I want to make it so my mod country would have a specific set of advisor portraits only available to them? Where are advisor portraits located at and how do you assign them to nations?

2 Comments
2024/11/25
05:22 UTC

1

How do I add new cultures to extended timeline

So I was using this mod and wanted to add a new culture to it. There's a mod called better colonialism that I have used before and has cultures I think are cool, but doesn't work with extended timeline. Plus, don't think it's up to date anymore. I tried putting it into the cultures.txt, and making a new localisation since I didn't know which to put it in, and that didn't work. How do I make this work?

6 Comments
2024/11/24
00:19 UTC

7

Weird black borders for modded provinces

https://preview.redd.it/jbtoo1btrp2e1.png?width=375&format=png&auto=webp&s=f8c2e6c684ecac3f12f9c48ac43c98fa5554da4e

I am trying to make a little map mod for practice and for some goddamn reason all my modded provinces have black borders around them. I have edited the seasonal colour file, the heightmap, and the terrain map too but nothing changes.

1 Comment
2024/11/23
21:57 UTC

1

Which Mod Sets Make for a more challenging experience?

Played EU4 enough that it's easy - the only difference between countries (and inbuilt skill levels) is how long it takes to get over "the hump" where you snowball over the AI.

I love the game though and don't want to give it up.

I would love to get suggestions of mods that are compatible with the last release (and ideally with each other) that make the game more challenging.

Context:

* I have Anbennar and like it. But this is for when I want a real-world feel.
* I've heard of Xorme AI and looked at it and it looks great, but some of the feedback that it makes the AI hyper-aggressive or unrealistically so puts me off. I don't want my desire for a challenge to mean "a couple of AI empires will blob crazily at the beginning". I like as "realistic" as possible.
* I also like quality of life and flavor and anything else that improves the game.
* I started with MEIOU 3.0, but my friend with whom I play can't get it to work on his computer (we like to play multiplayer but in different areas of the world so we can chat about the game but not interact too much)

My Christmas Wish List would be a set of mods:

A) in the order in which they should be added
B) that provides more challenging gameplay
C) in a way that isn't just "make the initial 'hump' higher"
D) in a way that isn't wildly ahistorical
E) in a way that minimizes 'house rules'
F) for bonus points, including other non-difficult-based mods but ones that add more flavor or options or QoL or whatever and are compatible

---

Thank you community so much!

0 Comments
2024/11/23
21:23 UTC

1

How to change colonial maintenance cost?

I'm just starting with EU4 modding and I want to change the base cost of colonial maintenace but I can't find where in the files I can change it. I would appreciate any help.

2 Comments
2024/11/19
21:11 UTC

3

Any mod for getting permanent claims all over the world?

Hi, I just created a custom nation and now I have to fabricate claims everywhere and wait 3 years to declare any war. Is there a mod that grants claims all over world or any piece of code that I can insert into the files?

1 Comment
2024/11/18
12:46 UTC

1

Modded Mission Tree breaks when loading save

Hi yall, I'm pretty new to this, but I've been trying to mod a mission tree for Orleans and I keep running into this issue where the tree loads fine when starting a game, but if I try to save and reload, then the tree breaks, and some missions don't show up at all while others show up multiple times. I uploaded the files to GitHub here for reference.

I'm hoping this is just some stupid typo or something, because I haven't been able to find anyone else with this problem, but I can provide any additional information if somebody is willing to help me here.

The only idea I have is that it might stem from this other issue I have been having, where the paradox launcher warns me that the mod is for the wrong game version, despite the version in the .mod file lining up exactly with the game version in the launcher.

3 Comments
2024/11/17
17:31 UTC

6

Population demographic for the upcoming mod wasteland

3 Comments
2024/11/17
14:36 UTC

1

Game Crash on Overlord of Custom Subject Type Annex

Hello!

I've added a custom subject type similar to an appange (full code in the comments). However, whenever the overlord of this subject is fully annexed, the game crashes. Below is the exceptions.txt data.

Any ideas?

    2   ???                                 0x0000000000000041 0x0 + 65
  3   eu4                                 0x000000010093719f _ZN11CDependency9OnDisableEbb + 179
  4   eu4                                 0x000000010093705d _ZN11CDependency8TransferE11CCountryTagS0_ + 37
  5   eu4                                 0x00000001002b8970 _ZN8CCountry14ClearRelationsE11CCountryTag + 2520
  6   eu4                                 0x00000001002b9e6e _ZN8CCountry22NotifyLostLastProvinceE11CCountryTag + 2660
  7   eu4                                 0x00000001008e14ce _ZN9CProvince8SetOwnerERKNS_19SSetOwnerParametersE + 4802
  8   eu4                                 0x00000001008ee21d _ZN9CProvince7ConquerE11CCountryTagRK8CEU3DatePKcbRK14SConquerParams + 633
  9   eu4                                 0x0000000100248950 _ZN8CCountry5AnnexE11CCountryTagbbbbbb + 2828
  10  eu4                                 0x000000010085560e _ZN11CPeaceOffer13Execute_AnnexER6CArrayINSt3__14pairI11CCountryTagS3_EEE + 1404
  11  eu4                                 0x0000000100850694 _ZN11CPeaceOffer7ExecuteEv + 6052
  12  eu4                                 0x00000001004ca04d _ZNK19CRequestPeaceAction14ExecuteDerivedEv + 5411
7 Comments
2024/11/17
05:48 UTC

5

[MOD RELEASE] Hi everyone, this is my first mod: Capital & Monuments Plundered!

Hey folks! šŸ‘‹ This is my first mod, so be kind!

Capital & Monuments Plundered makes Monuments a bigger part of your gameplay. You can plunder enemy Monuments during sieges, protect and upgrade your own, or even exploit them for short-term gains.

Key features:

  • Plunder or Protect: Loot Monuments for resources or safeguard them for bonuses.
  • Unique Siege Options: Choose to exploit, downgrade, or celebrate Monuments you capture.
  • Monument Surveyors: Specialists to help you manage upgrades and reduce plundering impacts.
  • AI Adaptability: The AI makes Monument-related decisions based on ruler traits.

Requirements: Leviathan & Cradle of Civilization DLC.
Let me know what you think ā€“ feedback is welcome! šŸŽ®

https://preview.redd.it/1d3npg1b891e1.png?width=1112&format=png&auto=webp&s=6c938211b09b2a3bdcbf308fa5c22e31b57f41e3

https://preview.redd.it/orq3ohsd891e1.png?width=1108&format=png&auto=webp&s=bd8e925a3d9a2522ec5b75f3f4f46ea982fd8cd6

https://preview.redd.it/3xg2ufte891e1.png?width=1098&format=png&auto=webp&s=5b010ce787fc451347d6ae2dc1de70b92e63c093

Steam workshop link

Paradox link

2 Comments
2024/11/16
12:09 UTC

1

Submodding tool?

Title. Recently finished a campaign I enjoyed a lot and want to continue playing it with a mod like extended timeline that adds a lot of flavor for the 19th, 20th and 21st centuries. Is there a "converter" to extended timeline or would I need to manually change the province files from the mod?

1 Comment
2024/11/12
19:27 UTC

1

How to Get Centers of Reformation to Spawn Past Age of Reformation? (Warhammer Mod)

Hello! I'm programming in the End Times, and I'm re-flavoring Centers of Reformation as Chaos Gates.

However, it seems that centers of reformation can only be spawned in the Age of Reformation and before. In the mod, the Age of End Times comes after the Age of Reformation.

Am I missing something? Or is there some way around this?

2 Comments
2024/11/12
16:40 UTC

3

How can I get rid of natives?

How can I get rid of all the natives in the world? I saw this multiple times in Chewbert's videos and I wondered if maybe this could help with some performance when I'm playing.

I tried something like this, but it's decolonising random countries:

every_country = {
    limit = {
        government = tribal
    }
    every_owned_province = {
        cede_province = ---
    }
}

Could somebody help me figuring this out?

EDIT: So apparently it was very easy, just change "tribal" with "native" (thanks u/RcTestSubject10), the only annoying thing is that you need to run this command multiple times to delete all of them.

5 Comments
2024/11/12
09:08 UTC

3

Help with an effect.

I am currently trying to create an effect that would change all vassal subject types you hold into personal unions. What I'm currently working with is:

effect = {
  create_union = { 
    every_country = {
      limit = {
        is_subject_of_type_with_overlord = {
          who = HAB
          type = vassal
        }
      }
    }
  }
}

My current problem is that when testing it in-game, all it does is show a pop-up of me creating a personal union with myself with no effect. When I hover on the decision I am using to trigger the event it shows the vassal nation, so it is recognizing it, just not targeting it for the create_union effect. How would I fix this? Bonus points if you can also tell me how to make the "who =" part target the nation triggering the decision, as I currently cannot get that to work either and am just using HAB as a placeholder.

2 Comments
2024/11/10
06:30 UTC

2

Changing unit models

If I want to swap the vanilla Spanish units to The Knights one (I like the unit model)

I tried everything but it won't change model on the said Spanish models

Which file should I tweak for Spanish units use the Knights unit models instead?

5 Comments
2024/11/07
22:51 UTC

1

Freezing during "Initializing Maplogic" - Total Conversion Mod

Hello! I'm currently trying to make a total conversion mod. However, it keeps on freezing when I reach 'Initializing Maplogic.' I've already looked at the checklist in the EU4 wiki and I've scoured the internet for possible solutions. One of the most common ones I've seen is this:

  1. You need to have at least one adjacency in adjacencies.csv, and also this as the last line in the file:Ā -1;-1;;-1;-1;-1;-1;-1;-1;
  2. There's a bug in the current version of EU4 where settingĀ max_provincesĀ in default.map below a certain number causes crashing/other issues. SettingĀ max_provincesĀ to 4970, the number that it is in the base game, is the current solution to that problem.
  3. The first line of definition.csv, before you start listing the provinces, needs to be this:Ā province;red;green;blue;x;x
  4. You need to have at least one pixel of each tree type in trees.bmp.

However, the problem seems to be none of these. My river map also has a river. My error log has nothing but '[map.cpp:104]: Area is missing name! Key: *insert area name.*' As for folders, I only have the map folder, a localization folder for the provinces + areas, and then a history folder for provinces. I've also tried replacing paths, but that doesn't seem to work. What else do I need to even launch the game?

9 Comments
2024/11/04
00:36 UTC

7

Elder Scrolls Universalis - Knightly Orders

1 Comment
2024/11/03
12:54 UTC

3

Vcitoria 3 map mod

i want to know if its possible to make a mod of the victoria 3 map style for eu4, so far i've only found attempts to do that but with vicky 2

https://preview.redd.it/7io170q4jcyd1.png?width=1920&format=png&auto=webp&s=4797bfc4a0b6c91e303cc9eddda79140ab43504f

2 Comments
2024/11/01
20:02 UTC

3

Tech group modding

How do i make it so a certain tech group has coring/government capacity penalties

9 Comments
2024/11/01
19:42 UTC

4

Defines and other ini tweaking

I am seeking to make AI not only form a coalition against me even if I am the most powerful nation. But the issue is I don't know which file or line in the defines I should modify for ai to both form a coalition and add me as rival

6 Comments
2024/10/29
20:18 UTC

2

Excommunication and Crusades

So, like

Where exactly are they.

Looked in diplomatic_actions, looked in new_diplomatic_actions, looked in the scripteds, looked in on_actions, they're nowhere to be found.

Either my game's cracked or something is going on.

All I really want to know is how to keep them enabled after the age of reformations after a certain mission has been completed.

1 Comment
2024/10/29
00:51 UTC

1

Changing country flags via event/decision

Hi, I am new to modding and I want to make a mod which has new flags for each country and I had an idea of having different flags for the same country in one run based on some criteria like different flag for Habsburg and not Habsburg Spain, or more stars in the US flag if they expand. Is there a way to do this with events, decisions, or maybe missions? And possibly without tag changing.

4 Comments
2024/10/28
07:45 UTC

5

Is it possible to make a mod that increases the cost of annexing unclaimed provinces?

I basically want to make a mod that increases the war score cost of taking provinces that dont have a claim, prefferably for every CB except Imperialism, Nationalism etc. Help would really be appreciated. Thanks!

2 Comments
2024/10/24
21:11 UTC

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