Warhammer 40,000 Homebrew Wiki:How to create a Homebrew Imperial Organisation

This guide for those who wish to create their own Imperial organisation. Before beginning, you must understand that the Adeptus Terra is the central bureaucratic organisation of the Imperium and not really an agency itself. It is made up of many autonomous departments that receive the orders of the High Lords of Terra, passing them down to the different branches that then enact the commands. On your right is a chart that depicts the structure and organisation of the various organisations of the most important Imperial organisations that makes up the Imperium of Man.

The Adeptus Terra, also known as the Priesthood of Earth, is the central bureaucratic governmental organisation of the Imperium of Man and not really an agency itself. It is made up of many autonomous departments that receive the orders of the High Lords of Terra, passing them down to the different branches that will enact their commands. There are only a few organisations in the whole of the Imperium that do not fall under this central command, most notable of which are the Inquisition, the Adeptus Mechanicus and the Adeptus Ministorum, also called the Ecclesiarchy. The Adeptus Astartes are officially a part of the Adeptus Terra, but remain a high level of autonomy.

The priesthood which serves the Lord of Humanity is often referred to as "the right hand of the Emperor." It falls to the Adeptus Terra to interpret the Emperor's will and minister to the Imperium. Many hundreds of thousands of souls labour across the galaxy to serve this vast organisation. There are numerous ancient institutions that make up the priesthood, each with various names on various planets. These varying Adepta, as they are traditionally known, each have a specific function to carry out in the Emperor's name. Only the Ecclesiarchy and the Imperial Inquisition are not formally a part of the Adeptus Terra.

The Adeptus Terra is an umbrella organisation, and not really an agency in itself, as each of its divisions functions largely autonomously and separately from the others. The most powerful individual in the Adeptus Terra (and if not in theory, then in practice, the entire Imperium) is the Master of the Administratum, who controls the central, secular bureaucracy of the Imperium.

The following Adepta of the Imperial government are all formally part of the Adeptus Terra:


 * Adeptus Administratum
 * Departmento Munitorum
 * Militarum Tempestus
 * Astra Militarum
 * Estate Imperium
 * Imperial Fleet
 * Imperial Navy
 * Navis Nobilite
 * Officio Assassinorum
 * Templars Psykologis
 * Officio Sabatorum
 * Planetary Governors
 * Adeptus Astra Telepathica
 * Sisters of Silence
 * Adeptus Astronomica
 * Adeptus Arbites
 * Adeptus Astartes
 * Adeptus Custodes
 * Logos Historica Verita

Before Beginning
To begin, please ensure that you have read the rules and the Quality Control Policy. These will give you an understanding about what you can, and cannot, write about when creating a Fanon Space Marine Chapter. When creating a Space Marine Chapter, be sure to utilise the Imperial Organisation Infobox in order to keep your article uniform with other Space Marine Chapter pages.

Also be sure to browse the Warhammer 40,000 Wiki] or Lexicanum (both excellent repositories of all-things WH40K) as there are already a lot of Imperial organisation within the hierarchy of the Imperium. There might be one that is similar to the one you had in mind to create. Though this is unfortunate, try to ensure that you create something unique and original, as this will avoid problems with being accused of plagiarization.