Crusader Kings III

Crusader Kings III

367 ratings
CK3 to EU4 Converter
File Size
1.260 MB
Sep 27, 2020 @ 9:41am
Nov 11 @ 9:22pm
15 Change Notes ( view )

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CK3 to EU4 Converter

CK3 To EU4 Converter

Welcome to the CK3 to EU4 Converter project! The goal of this project is to allow a Crusader Kings 3 campaign to be transferred and continued in Europa Universalis 4, so you may continue your game uninterrupted, from 867 to 1821+, and further using our other converters to Victoria 2 and Hearts of Iron 4.

Running a continuous campaign from CK3 all the way to HoI4 is called running a mega-campaign.

Converter is not a mod - it is a mod producing application (program, software)
  • This converter currently supports EU4 1.32+ and CK3 1.3/1.4. EU4 DLCs are optional, as are CK3 DLCs.
  • This mod is not intended to be enabled in game. It is only a delivery vehicle for the converter's download link.
  • You can also download the converter directly from our forums thread[] or from Github.

Setting up the converter.
To set up the converter, you’ll need to follow the steps below:
  1. Subscribe to the this mod.
  2. If the mod does not immediately begin downloading, you may need to start CK3 launcher to trigger the download.
  3. Go to your mod folder (usually C:\Program Files (x86)\Steam\steamapps\workshop\content\1158310\2241203093, or elsewhere if you moved your steam library)
  4. Inside it find and open downloadLink.txt.
  5. Within that file is a direct link to the converter's download location. Copy the link and paste it into a browser to download it.
  6. Unzip the downloaded converter to a new folder by right-clicking on it and selecting Extract All…
  7. Finally, go to the extracted converter's directory and fire it up by running ConverterFrontend.exe.

If you downloaded the converter directly from forums or github, you only need to execute steps 6 and 7.

How does it work?
Every converter has a detailed documentation available at its wiki page[].
Very generally, it takes your Crusader Kings 3 saved game and converts it into a Europa Universalis 4 mod.
You then have to enable that mod when starting EU4 launcher:

  1. Create a new playset in the launcher.
  2. Add the conversion mod into the new playset, along with other mods you want to use (such as graphical ones)
  3. On the Home page of the launcher, make sure the new playset is enabled and selected before pressing Play.


We welcome any questions and will gladly help you out if you hit a problem.

When seeking help, discussing conversion issues or problems, or if you simply need answers to your questions, come to our Paradox forum release thread[].

To resolve issues we will always need your conversion's log.txt. You can find it in your converter's folder after conversion. Upload your log.txt to the release thread, along with a detailed description of your problem. We may need additional data like your running savegame or mods used, which you can also upload to the forums directly.

Keep in mind Steam discussion below is not suited to troubleshooting as you cannot upload files we need.

Suggestions / Development

We are always open to suggestions on improving our converters. Best place for that is our development thread[].
Popular Discussions View All (9)
Dec 3 @ 6:34pm
Conversion of a modded game
Feb 22 @ 6:35am
How can i fix religion icons?
Jan 17 @ 2:38am
CK3DocDirectory Not Found
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Zemurin  [author] Nov 20 @ 10:29am 
@batta_gs: No.
batta_gs Nov 20 @ 10:23am 
Is this mac compatible?
Zemurin  [author] Nov 15 @ 1:34am 
You can increase or desrease development yourself. Edit CK3toEU4\configurables\dev_weights.txt.

As for dynasty, we've seen severe gameplay issues when we originally used dynasties instead of houses. When half the map is same dynasty and everyone's christian, hilarity ensues. It's really not balanced.Unfortunaltely, EU4 has no concept of related dynasties.
firespark84 Nov 14 @ 11:47pm 
also cadet branches being made back into the same dynasty in eu4 or at least an option for it would be really helpful since it would make spreading your dynasty in ck3 much more rewarding in eu4. currently cadet branches dont even acknowledge their shared roots with other houses of the same dynasty, even if the name is just the dynasty name with a location added on.
firespark84 Nov 14 @ 11:39pm 
maybe increase the amount of development that is transferred upon conversion? my capital that was 100 dev in ck3 was only 12 dev in eu4. same with other extremely high dev land. A ratio that would be good I think would be 1/2 or 1/3 dev in ck to eu4. currently its really low.
idhrendur  [author] Nov 14 @ 6:46pm 
@enea: Click the 'add more mods' button
enea Nov 14 @ 4:52pm 
How do i add the converted save to a playset in the eu4 launcher?
Zemurin  [author] Nov 14 @ 2:00am 
@g0bst0p3r: We've added "may_drill" to the converter's files the same time EU4 did, which is to say a 4 months ago. You're probably using an obsolete converter.

Please, in future, go to release thread and upload log.txt when you have problems.
g0bst0p3r Nov 13 @ 9:15pm 
I found the problem. i had to add a line "may_drill = yes" to the mil.txt file in mod.
g0bst0p3r Nov 13 @ 7:52pm 
Ah well i am definitely having some sort of issue. The only time i cannot drill armies is when im using a converted save mod, even when meeting all the requirements such as having a leader and the required military tech level. It works just fine without any mods and the converter is the only one i use lol. Also I misunderstood what you had originally replied back to me with, my bad. If it helps my ck3 save also had no other mods attached to it