Overview
This is a list of what the files and folders inside the main Victoria 2 folder mean, knowing what files go where, and where to make changes is the most important part of modding, as something in the wrong place can easily lead to a fatal crash.
Note that Victoria II's files need to be saved with ANSI encoding in order to work properly in the game. Additionally, some files seem to be encoded in a weird manner (such as some of the province history files), resulting in the game reading their contents as a single line. This can be fixed by creating a new .txt file with ANSI encoding with Notepad++ and copying the contents of the old file to it, deleting the old one and replacing it with the new.
The Files
| File/Folder | What it contains |
|---|---|
| Victoria II\battleplans | Settings for battle plan editor |
| Victoria II\common\ | General information |
|
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| Victoria II\decision\ | Decisions folder, all decisions are stored here |
| Victoria II\events\ | Events folder, all event files are kept here |
| Victoria II\gfx\ | Graphics |
| Victoria II\history\ | Data on each province, diplomatic relations, country, units and POPs |
| Victoria II\interface\ | Interface Graphics |
| Victoria II\inventions\ | All inventions together with requirements, invention chances and effects |
| Victoria II\launcher\ | Launcher graphics and configuration |
| Victoria II\localisation\ | All text data for things like country names and event description, has options for other languages |
| Victoria II\map\ | Map settings, province shapes, continents, regions etc. |
| Victoria II\mod\ | Folder for storing mods and .mod files |
| Victoria II\movies\ | Game intro movie |
| Victoria II\music\ | Music used by the game |
| Victoria II\news\ | All news stories |
| Victoria II\poptypes\ | All POP data for each specific POP type |
| Victoria II\script\ | All scripts |
| Victoria II\sound\ | All sounds except music |
| Victoria II\technologies\ | Technologies with their effects and attributes |
| Victoria II\tutorial\ | Tutorial configuration |
| Victoria II\units\ | All military unit attributes, for each specific unit |
Pop files note: Issue and Ideology modifiers are multipliers, all other seem to be additions.