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This article describes how the files in an installation of Europa Universalis II are organized.

Main folder level (without any mod directorys)Edit

EU2 installs in a directory of your choice, e g: C:\Games\Europa Universalis II\. By default, it will be in C:\Games\Europa Universalis II\ or C:\Paradox Entertainment\Europa Universalis II\. For the rest of this article, though, we will be assuming that it is installed in C:\Games\Europa Universalis II\

In this directory (from hereon called "main folder level") the structure is like this:

Folders:

 AI
 avi
 Config  
 DB   
 GFX  
 Map  
 Music  
 Scenarios
 sfx
 Tutorial

Files:

 ASYCFILT.DLL
 comcat.dll
 eu 2 event scripting.doc
 EU2.exe
 EU2_Settings.exe
 Fantasia.eug		
 Napoleon's Ambition.eug	
 net.cfg	
 Readme.txt
 settings.cfg		
 ... and other files
 
Short summary of the content in the folders
Folder: Contains:
(Main directory, contains all folders below) The topmost level in the EU2 file structure. The EU2 program (exe) is here and some important *.cfg files. Also the EU2_Settings program (exe) that sets the display resolution and more is found here.
AI AI files. Controls the behavior of the countries they belongs to.
avi Intro files. Contains the introduction and other videos that plays when You start EU2. Sometimes removed or renamed by the player to solve some graphical problems.
Config Text files and misc. The important file here is the text.csv that contains much of the text that displays in the game.
DB Many different types of files. Here you can find the files containing the events in the game, monarchs, leaders and other types of files.
GFX Graphical elements. Here you can find flags, shields, backgrounds to the menus in the game etc.
Map Mapdata. Here is the code that defines the maps used in EU2 and some other data such as colors and movement in terrain.
Music Music and playlists. Here is the music played in the game including the playlists for each century.
Scenarios Scenarios and savegames. Here are the scenarios You choose among when starting a new game in EU2. They contains also base data for the countries in each of the scenarios.

The games you save are also found here.

sfx Sound effects. Contains the sound effects that are used in the game, e g when a manufactory is constructed or an army disbands.
Tutorial Tutorial files for EU2. Data to be used by the tutorial in the game.


.

AI folderEdit

The AI folder contains the AI files that contain the code for controlling the AI behavior.

Normally they have the name format "country.ai". But they can technically have any name. In some mods they have the *.txt suffix.

avi folderEdit

This folder contains binkplay.exe and some intro files. Filelist:

binkplay.exe
dedication.bik
eu2_intro.bik
intro-bik
paradox.bik

Sometimes they can cause some display problems (eventually a crash to desktop), so it happens that the folder has to be renamed/deleted to solve the problem.

Config folderEdit

This folder, in spite of its name, does not contain any *.cfg files.

Its content is mainly text strings that are used in the game. The most important file, the text.csv file, contains most of the event and action texts that are displayed in the game.

Buttons.txt and editor.csv contain similar content. Sfx.txt seems to contain links between actions and action sounds.

DB folderEdit

This folder contains several different game files, some of them in subfolders. They define the following objects:

  • Monarchs. The historical monarchs for all the different countries. The monarch files have the name format "monarchs.country_tag", e g "monarchs.eng". They are placed in their own folder named "monarchs".
  • Leaders. The historical military leaders (e g generals) for all the different countrys. The leader files have the name format "leaders.country_tag", e g "leaders.eng". They are placed in their own folder named "Leaders".
  • Events. The historical and random events for both specific countries and for the game in general. In vanilla EU2, event files have the name format "major_country_tag.txt", e g "major_eng.txt". They are placed in their own folder named "Events". But which files (in the Events folder) that are used are defined in the file "events.txt", which is located in the DB folder.
  • Combat. The definition of combat behavior and troop type strengths in different time periods and development levels. They are mainly placed in their own "combat" folder. The files have the *.csv suffix. Outside of the combat folder there are some files in the DB folder that affects combat: "LAND.csv" and "NAVAL.csv".
  • Provinces. The definition of province attributes and the placement of some objects in the provinces. The single file for that is "province.csv".
  • Countries. The definition of some attributes for the countries in the game, like map colors and initial domestic policy. The file used is "country.csv" and for revolts: "revolt.txt".
  • Others. Like trade, straits, goods, religions, missions and names for different objects that are not defined elsewhere and more. The files in question are:
armynames.csv		
colonynames.csv				
DiplomaticMatrix.csv				
goods.csv				
Missions.csv			
navynames.csv			
randomleaders.csv		
religion.csv					
tax_stab.csv	
trade.csv		
traders.csv	

There are also some misc. files not mentioned here.

GFX folderEdit

This folder contains several different game files, some of them in subfolders. They define the following objects:

  • Fonts. This directory doesn't contain any font files, but actually stores some pics that are probably used as a background for captions in game.
  • Interface. This directory contains the images of all the buttons, backgrounds and objects from the game. It can be modified so that your EU2 interface would look completely different.
  • Map. This one, apart from pics of the minimap from the left-bottom corner, contains the flags and shields of the countries and things that are used on the map (like trees, mountains, ships, etc.)
  • Palette. It stores in-game palettes that are used for displaying colors properly.
  • Settings. These are things that didn't fit in the 'Interface' directory.

The other files:

boat.bmp
Cross.bmp
Dummy.bmp
Empty.bmp 
infantry.bmp
Load_800.bmp
Load_1024.bmp
Load_1280.bmp
Loadingbar.bmp
Loadingbar_800.bmp
Loadingbar_1024.bmp
Loadingbar_1280.bmp
Pil.bmp
PilSkugga.bmp
Sidebar_banner.bmp

Map folderEdit

This directory stores files used for displaying and generating the in-game map. They can be used in hacking your map.

Adjacent.tbl
Adjacent_ori.tbl
adj-defs.csv
Boundbox.tbl
colorscales.csv
ID.tbl
Idgrid.tbl
Incgrid.tbl
Incognita.tbl
Lightmap1.tbl
Lightmap2.tbl
Lightmap3.tbl
Lightmap4.tbl
Lightmap5.tbl
Province.csv
SpirteDB.csv
Terraint types.csv

Music folderEdit

This contains music mp3 files used in-game. You can add your own tracks by coping them to this directory and adding their name to FRONTEND.txt file.

Scenarios folderEdit

sfx folderEdit

Tutorial folderEdit

Main folder level with MODSEdit

Assuming the example from above of the main EU2 directory and that we have a mod called "Horror Vacul", the main folder structure could look like this:

 AI  
 avi
 Config  
 DB   
 GFX
 Horror Vacul  
 Map  
 Music  
 Scenarios
 sfx
 Tutorial


The folders that belongs to a certain modEdit

As of version 1.05 of EU2 and later, You can define a "moddir" that EU2 uses as a base directory for playing the mod. All files that belong to a certain mod, e g "Horror Vacul", usually (with one eventual exception) are contained in the mods own folder, "Horror Vacul", as in the example above.

The exception is when you want to be able to select the mod from a normal start of EU2. In this case You must have the topmost scenario file from the mod in the main Scenario folder. The folder structure is normally the same as in the main directory.

When a modded game is looking for a particular file, it will first search for that file in the mod's directory structure, and if it can't find it, will then search in the main directory structure. E.g. if it is trying to find a file that is usually in "DB", using the mod Horror Vacul, it will look in "C:\Games\Europa Universalis II\Horror Vacul\DB", and if it doesn't find it, will then look in "C:\Games\Europa Universalis II\DB".

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