About this website
An independent guide to the Kaiserreich mod that links only to official sources.
What this site is
This website is an independent fan resource about Kaiserreich: Legacy of the Weltkrieg, the alternate-history mod for Hearts of Iron IV. It is written and maintained by the Kaiserreich.app Editorial Team. We are not the Kaiserreich Team or Paradox Interactive and do not speak for them.
Our aim is simple: one clear page with verified release facts and official downloads, plus eight in-depth guides for the questions players ask most.
About Kaiserreich
Kaiserreich is developed by a volunteer team known as the KR4 Team. It began in 2005 for Hearts of Iron II and has been on Hearts of Iron IV's Steam Workshop since December 2016. The current release is 1.7 “Crossroads of Civilisation” (September 18, 2026).
How we research
- Primary sources: the mod's own README and descriptor, the GitHub repository's tags, the Steam Workshop page and the official wiki.
- Dated facts: we show the date we last checked (November 9, 2026) separately from release dates.
- Nothing invented: no fake ratings, reviews, download counts or screenshots. Covers and diagrams are labelled illustrations.
How downloads work here
We never host or modify mod files. The red button downloads the official tag archive from github.com/Kaiserreich; the Steam button opens the official Workshop item in the Steam client.
Corrections
If a version number is out of date, let us know via the contact page.