About EU5DB

EU5DB is a reference for Europa Universalis V players and modders. For everything the game defines (laws, estate privileges, advances, buildings, events, modifiers and more) it answers three questions: what it is, how to get it, and what it does, with links to everything it connects to.

What's on the site

Every definition has its own page: its requirements as condition trees, its effects worded like the game's tooltips, and what unlocks, fires or changes it. The interactive map shows the world at the start date, with map modes for owners, cultures, religions, population, terrain, climate and goods. The Content Viewer gathers each country's, culture's and religion's unique events, laws, reforms and more. What changed gives the patch notes for each update, read from the game files themselves, and every version since 1.0 stays browsable. The open beta and popular mods have their own copy of the site, and Load your mods builds one from your own mod folder, in your browser.

How it's built

EU5DB reads the game's own scripts and localization, currently version 1.4.7, with a parser written for Paradox's script language. Every reference between definitions is resolved into a link and shown on both ends, so a page shows what a definition does and everything that points to it. Anything the build can't resolve is reported and fixed in the extraction rules, never patched over in the pages, so the site follows what the game actually does, in the game's own words, in all of its languages. It is rebuilt and checked for every game update and open beta, and the data is open to other tools through the API.

Who runs it

EU5DB is built and maintained by one independent developer who plays the game, with reports and suggestions from its players and modders. Hosting is paid for by ads and by support on Ko-fi.

Contact

Bug reports, missing data and suggestions are welcome on the EU5DB Discord, where most of the site's improvements start. For anything else, write to (enable JavaScript to see the address).

Disclaimer

EU5DB is an unofficial fan project. It is not affiliated with, endorsed by or sponsored by Paradox Interactive. Europa Universalis and all game content, names and images are © Paradox Interactive. The site itself (its code, design and text) is © 2026 Soft Santa Cruz, S.L.U. All rights reserved. See the legal notice for the company details and the privacy policy for how the site handles analytics and advertising.