Ruina Imperii is a community collaborative project that is set in an alternate timeline where the Imperium of Mankind has come to an end as the Imperium of Man is replaced by a smaller New Imperium. Though this is an Alternate Universe (AU) community collaborative project which does deviate slightly from established canon, some ground rules must be put into place in order to maintain a unified vision for this project as well as maintaining a high standard for the quality of content that is expected of our editors here on the Warhammer 40,000 Fanon Wiki.
First of all, welcome to the 48th Millennium and Ruina Imperii Alternate Timeline! I, Lune Crackham, welcome you. Before writing anything you want to add, please don't forget to use Template: RIpage to ensure that it can be seen in the community. Also, if you want to join the community, feel free to message me on my talk page . If you are not in the community and want to join, please note that we will inspect your written articles and start a vote to decide, a vote every member can participate in. Also, if you are a member and wrote an article about Ruina Imperii, it is your responsibility to add the article to the Articles section, if not done before.
To begin, please ensure that you have read the Ruina Imperii community collaborative project page’s Overview and What is it? sections, in order to familiarize yourself with the project's background and setting. The following sections will give you an understanding about what you can, and cannot, write about. There are some basic rules and restrictions to obey such as:
A) The result of the Horus Heresy and the number of Traitor Legions cannot be changed.
B) The organizations known as the Inquisition and Ecclesiarchy (aka Adeptus Ministorum) exist, but only because the Imperial Remnant resurrected them after New Imperium forcefully occupied their headquarters and disbanded these organisations. They still have similar duties, but their voices have meaning only within the Imperial Remnant while the New Imperium has a secular belief, stating that, "The New Imperium will tolerate any form of worship, unless it directly or indirectly harms the New Imperium."
C) The Chapters in the New Imperium differs slightly from the old. The Chapters within the New Imperium, with the sole exception of the Crimson Guard, include 3,000 Astartes and 500 Neophtyes each. These Chapters are led by their Chapter Masters who report directly to the High Consul Alistair Crackham. The New Imperium is also intolerant of autonomy and Chapters are inspected thoroughly to keep them free from Chaotic taint. The Imperial Remnant however, obey a remade Codex Astartes which demands that all the Chapters would be united as a legion and while the Chpaters and their organisations remain the same, this legion is commanded directly by the "Herald of the Emperor", the leader of the Imperial Remnant.
D) Adepta Sororitas are no more because after the Sisters of Silence discovered the treachery of the Ecclesiarch, who attempted to use a blasphemous daemonic ritual to destroy the rebels, the Sororitas abandoned their duties and all orders agreed to retreat to Ophelia VII. When the Sororitas made planetfall, a quick cleansing began and the entire planet fell under their rule. Thus they decreed their independence, stating that they would serve as a force operating only for Mankind within the galaxy, and no nation would have their loyalty. After the Imperial Remnant was founded, their response to this situation was brief but deadly. Mighty battle ships occupied Ophelia VII and Loyalist Astartes cleansed more than half of the planet in mere months. Imperial Remnant had triumphed when a small New Imperial fleet, led by the only reformist Sisters of Battle called the "Reformist Seven", arrived and successfully managed to sneak into the planet's surface. The New Imperium demanded the annexation of the Adepta Sororitas and because of being desperate, the Sisters of Battle were quick to break their oath. The leader of the Reformist Seven known as "Ebony Dagger" also played an important role during this war and managed to convince her fellow sisters to aid the New Imperial cause. As the war dragged on, New Imperium was successful in evacuating all the remaining Sisters of battle with avoiding detection of the Remnant blockade, right after their initial objective was completed. They now serve under the New Imperium as an elite organization called as "Silent Daggers" and are led by Ebony Dagger herself. The reason why Sororitas agreed to join the secular New Imperium was because they were grateful for every New Imperial soldier who sacrificed their lives on Ophelia VII for them and because they were declared heretics by the new Ecclesiarch that rose to power after Imperial Remnant was established. Losing their faith, the only thing that keeps the Sisters of Battle standing is their determination to prove their worth to the New Imperium.
E) No loyalist Primarchs ever returned to the Imperium in these times of need. However, the Ultramarines' Primarch Roboute Guilliman, after his resurrection, served as the Lord Commander of the Imperium of Man until the war known as The Great Devouring. Guilliman and the 1st company of the Ultramarines valiantly sacrificed themselves during the final epic battle, in order to defeat the first Greater Hive Fleet. It is rumoured that the Armour of Fate, the artificer armor worn by Guilliman, protected his body at the cost of putting the Primarch into stasis. With his armour shielding his body from death, the Ultramarines believe that the body of their Primarch is aboard the destroyed Macragge's Honour, whose massive wreckage is in the devoured regions of Segmentum Pacificus. The New Imperium also made attempts to recover Guilliman, basing their operations on these rumours, but their attempts bore no fruit.
F) The term "Heresy" is no longer used in the New Imperium. Instead, it is replaced with "Treason", though you can use any other term if you like. However, the Old Imperium is still punishing heretics severely.
G) You can make your own empires that are ruled by any race, by using Template:Infobox RIEmpire, but you can't change the governmental, economical and military structures of the 5 main empires (meaning you can write about them, but can't change their basics), whose names are the New Imperium, Imperial Remnant, Chaos Resurgent, Necron Empire and the Federation (Tyranids are not considered as an Empire, so feel free to write about splinter Hive Fleet forces and what-not.) unless you are a project moderator.
H) Necrons are busy fighting Tyranids as the Silent King plans to search the worlds not in the Milky Way Galaxy in order to accomplish his goal. This note means: Necrons don't want to conquer the galaxy entirely and can't focus on it primarily because they are fighting against the Tyranids with the bulk of their force. However, many dynasties still continue to fight against the races within the known galaxy and as such, the Necron Empire manages to be a threat to both the Tyranids and other empires.
I) The first 8 Heroes of the New Imperium are already made or planned. However, the other 8 remains free to make and you can make one if you are given permission to do so by the Founder directly.
J) The Imperium of Man barely managed to defeat Abaddon the Despoiler during the 14th Black Crusade, without the help of their Primarch, Ultramar suffered heavily during the 14th Black Crusade and many Successor Chapters of the Ultramarines were destroyed to preserve Ultramar. The Imperium of Man continues to be plagued by many more Black Crusades, and eventually Chaos forces managed to invade the Cadian Sector during the 20th Black Crusade, establishing a small empire known as "Chaos Resurgent".
K) The Emperor of Mankind is still in a millennia-long coma and still sits upon the Golden Throne.
L) The Tau Empire is dissolved, and the Farsight Enclaves are ravaged by Tyranids. The Tau race was forced to flee their homeworld and now lie divided. (You can still make small states ruled by Tau though.)
M) The Galaxy Map will be improved when a nation state made by a contributor (or moderator) passes inspection. That's why the boundaries of the nation states you want to create are important. Also, these nations created can not be bigger or more powerful than the 4 major factions.
N)The list may continue so get a good drink and relax...