One of the unsolved mysteries of Warhammer 40,000 – Terminus Decree – Now formally explained by a brief passage in the new code, some fans really hope it leaves imagination

It's one of the huge yet unsolved mysteries of Warhammer 40,000 Universe-at least, it Once was. With the new code, Games Workshop finally reveals the true nature of the highly anticipated Terminus statute, and some Warhammer 40,000 legend fans really hope it doesn't.

The decree of the end is for beginners, the final order issued to the Grey Knight, perhaps the most mysterious chapter in the space marines in the environment, and the emperor is placed in the throne of gold after the emperor is fatally injured by Horus at the end of Horus Horus Horesy.

(For more information about the current situation of the emperor, please check This article is here)

The idea is that only the Supreme Master of the Grey Knight can open the Terminus decree and discover what exactly is needed for the final order. Essentially, it's “broken glass” of Pandora's box “in an emergency” – Warhammer 40,000 fans wonder what's inside for years.

Now, with the release of the new Gray Knights Codex (a book packed with background knowledge, for miniature images in tabletop games, and new rules available), Games Workshop reveals for the first time what Terminus desre actually involves.

warn! Warhammer's spoilers 40,000 legends are as follows:

A passage from the new Grey Knight Code ignited Warhammers for 40,000 legendary fans as it revealed that the Grey Knight's ultimate duty is to have the Emperor who has ever tried to leave, reborn or ascend to God, kill or reenter the Emperor within the Golden Throne. This is Terminus’s ordinance: a super secret doomsday device, a casual box left by the Emperor himself, and if he recovers and dares to leave it, it will force the Grey Knight to re-assemble on the throne of gold.

New Grey Knight Code “Interpretation” Terminal Order
…What?
What! ?
how!
when! ?
how! ? pic.twitter.com/87h9wjeqpb

– tôryk Irberthrowa (@torykbirdthrowa) July 29, 2025

Interestingly, this passage reveals that the Endpoint decree does not direct the Grey Knights how they should do this, and if anything, they may have to cut down the Adeptus hosting to do it. The Trustee is the Emperor's super powerful bodyguard – even stronger than the Space Marines – Good luck!

This is a huge amount for any Warhammer 40,000 legendary fan. This is a major revelation, and years of debate ended at this point. Whether you see it as the Emperor is smart, because he knows that if he ever returned it, it is not him at all, but something else (this development has the potential to take advantage of the ongoing Dark King plot line), or the large thing that Games Workshop seeds built for them (Chief Trustee Constantin Valdorand it seems the Emperor is…exciting), the inevitable fact is that we know, whether we like it or not.

This is a big problem for some Warhammers 40,000 legendary fans, and since then they are frustrated that Games Workshop has fundamentally explained the mystery. Warhammer 40,000 is full of unexplained mysteries, hanging plot threads, and seductive puzzles that may never be explained. Taking the mystery of II and XI as an example, the forgotten and cleared people, the two lost the premise and their two lost legions. Games Workshop dances around revealing this part of Warhammer for more than 40,000 years, and many hope the truth will never be revealed. After all, guessing is part of the fun. Let things leave imagination with a lot to say.

That's the case with the Terminus Ordinance so far. Then what to give? Why is it revealed now? Why guess and imagination at this legendary point, especially from fans? There are a lot of strong reactions from the community. Here is a snippet:

“I really don't like this.” Redditor Aposi says. “This both ruins the mystery and changes the concept from the final weapon from the apocalypse scenario (cool speculation is cool), just one of these cool speculative things happens while trying to restore the status quo.”

Never had such a situation filled GW with legends, not just the imagination of the players.

But this is by far the most brutal example. Not even closed.

– Shadow of Question (@shadow_ofadoubt) July 30, 2025

“Don't like…completely annoyed,” Drxero1xero adds. “The huge mystery, leaving it unknown or making a novel or three…not throwing it in the text box in the code.

“GW drew fun from the Warhammer's setup bit by bit, flat and colorless…no mystery, all the knowledge…”

GW is lost, they just want to explain everything and take away the mystery from things, aren't they?

– Gage Davidson (@GageDavidson608) July 30, 2025

“I think it not only ruins the whole mystery, it doesn't work at all,” TheVoidDragon said.

“The cool thing about the legend has no idea what it is, what it will do or even what it is. The mystery and guess about it that might make it fascinating has been fascinating for years. Now, completely defining it all, it's totally clear what it is to say exactly what it is, like it's OK.”

Leaving the mystery is crucial to the mystery of 40k. If a mystery must be revealed, it must be a grand writing. In this case, their marble became one of the most premonition and cool things that the Grey Knight had. FFS GW

– Lazysterguard (@lazysterguard) July 30, 2025

The next obvious question is whether the End Point Act will come into effect soon? Will we see another code or blog post in the novel, the Grey Knight is actually fighting the custodian because the Emperor has recovered himself in some way? Or is this just a weird surge in Warhammer 40,000's activity that will now cause Kerfuffle, but won't cause anything in the next few years?

Like the warp itself, game seminars can sometimes feel agnostic.

John Blanche's Emperor of God. Image source: Game seminar.

Wesley is IGN's news director. Find him on Twitter via @wyp100. You can reach Wesley via [email protected] or secretly visit [email protected].