EU40K – Total Conversion

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Authors: Arcenik, Garion132, Ro, Dr4GonFire, Sir Cat

Last revision: 1 Oct, 2025 at 19:35 UTC (23)

File size: 384.13 MB

On Steam Workshop

Description:

EU40k is a total conversion mod set in the universe of Warhammer 40k. Set in the 42nd Millenium at the advent of the Indomitus Crusade, almost every named planet in the setting has been represented in-game!

Features:
– A completely new map with over 3200 new provinces and hundreds of new countries. Almost every planet and major faction in the 40k universe is represented!
– Mission trees for the Imperium of Man, Hive Worlds, Genestealers, and Ultramar
– A reworked Empire of China system for the Imperium
– Over 200 new units spread among 10 new tech groups
– New mercenary companies (now renamed Elite Units)
– New holy orders
– New diplomatic actions
– Reworked ages with unique splendor abilities
– New factions
– New special units
– New idea groups
– New government mechanics and reforms
– New religions
– New great projects
– New government mechanics
– New religious mechanics
– New terrain types

*Most event, mechanic, and mission content is limited to the Imperium at the moment.

Team Members and Contributors
Garion132 (Co-Developer)
Dr4GonFire (Co-Developer)
Johannes (Co-Developer)
Sir Cat (Co-Developer)
Arcenik (Co-Developer)
TheOneNation (Contributor, Krieg Content)
Beakens (Contributor, Flags)

Credits:
Games Workshop for the universe of Warhammer: 40K
BakaDesign for their icon gfx[www.tumblr.com]
Pedro Nunez for the Coronation of Roboute Guilliman used in the Age screen [www.instagram.com]
Legio Symphonica for the 40K Suite set of ambient musical tracks [open.spotify.com]
Domains of Ambience for an assortment of ambient musical tracks [domainsofambience.bandcamp.com]
Archotechna for the an assortment of musical tracks

If you want a better place to post your suggestions, bug reports, and other EU40K content feel free to join the EU40K discord![discord.gg]

Newest Changes (6/28) include:
Changes:
– New Diplomatic Action (Declare Head of Mechanicus)
– The Nachmund Gauntlet now functions as a canal. Crossing it is now only possible through the associated great project.
– New subject type (Contained Power)
– The Tyranids now have access to artillery
– Tech has been decoupled from Institutions and now functions similarly to the base game
– New decision (Settle the Jericho Maw Gate)
– About 50 new provinces in Mars, the Sanguinary Worlds, and the Salient Stars
– A new musical score for the Mechanicum composed by Archotechna
– 8 new musical tracks and a new main theme composed by Domains of Ambience[domainsofambience.bandcamp.com]

9/2 Update
– A reworked T’au mission tree
– The Webway crashes were potentially resolved