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Warhammer 40k 9th edition codex release dates

The complete history of Warhammer 40k 9th edition's troubled codexes, from COVID delays, to overpowered Votann, to the triumphant World Eaters.

Warhammer 40k codex release dates - Games Workshop artwork from the cover of the new astra militarum codex showing lord solar leontus on his robot horse Konstantin

While we’re well and truly into Warhammer 40k 10th edition, there’s plenty to be learnt from looking back over the history of Warhammer 40k 9th edition codex release dates. This guide sets out every release in the edition, from first (Space Marines) to last (World Eaters).

If you’re interested in the current crop of Codexes, check out our guide to Warhammer 40k Codex release dates, where we’re tracking all the news for these vital reference books for each Warhammer 40k faction.

For a whimsical look at the history of Warhammer 40k Codexes, we recommend Codex Compliant by YouTubers Snipe and Wib, which has been poking and prodding at Codexes from old editions of the game for over five years!

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Every 9th edition Warhammer 40k codex in order

Given GW announced 9th edition a few months into the worldwide COVID-19 pandemic, the rollout was always going to be problematic. As the title fighters for the new edition, Codex: Necrons and Codex: Space Marines were released before Christmas 2020, along with the Codex Supplements for the Blood Angels, Deathwatch, and Space Wolves.

But the rulebooks’ release cycle was delayed on December 4 2020, when GW put the release of the Death Guard codex on ice due to “unavoidable delays to crucial shipments”. That book finally arrived in late January 2021.

Warhammer 40k codex release date guide - author photo showing titles and spines of Warhammer 40k codex books

GW shied away from releasing any hard-and-fast timings for upcoming codexes after that, as the underlying production issues hampering book releases persisted.

We eventually saw a stack of impactful Warhammer 40k codex releases in 2021. Dark Angels in February, Drukhari in March, and the Adeptus Mechanicus in late May. June 2021 brought us the Adepta Sororitas codex, and July provided the Orks as well – at least if you got it as part of their Beast Snagga army box.

The Grey Knights and Thousand Sons released in August 2021, followed by a standalone release of the Orks codex in September.

In November 2021, the Black Templars got their first dedicated codex since 2005, followed by a double-bill of the Adeptus Custodes and Genestealer Cults in January 2022. The new T’au Empire codex arrived next, in early February, followed by the Eldar codex in March; Tyranids in April; and both Imperial Knights and Chaos Knights in May.

Codex Chaos Space Marines turned up just as June turned into July, and Chaos Daemons straddled August and September.

The new Leagues of Votann got their first codex packed in with an army set in September 2022, followed by an independent release in November, which we’re calling the final 40k Xenos codex. In the same month, the Astra Militarum (aka Imperial Guard) finally got their 9th Edition codex, packed in with the Cadia Stands bundle, wrapping up all the Warhammer 40k Imperium of Man armies.

The World Eaters tied off all the Warhammer 40k Chaos factions – and in fact, all the codexes for 9th edition. And as our writer Tim Linward says in his World Eaters Codex review, they might be the very best codex of the edition.

Warhammer 40k codex release dates - Games Workshop graphic showing the winter 2022-23 codexes including Astra Militarum and World Eaters

Which 9th edition Warhammer 40k codexes were released?

There’s a total of 25 9th edition Warhammer 40k codexes out now (including codex supplements). Here are the books that are already out in the wild:

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Astra Militarum codex release date

The 9th edition Astra Militarum codex – a.k.a. Imperial Guard codex – was released as part of the ‘Cadia Stands!’ Astra Militarum army set on November 25, 2022, after a two-week pre-order period. The standalone Astra Militarum codex released just over two months later on Saturday, January 28.

The 152-page book was received by many players as one of 9th edition’s strongest faction codexes, with widespread buffs to the army’s core ‘Orders’ mechanic; the new Turret Weapon rule allowing tanks to shoot their big guns much more consistently than before; some very dangerous new units; and considerable buffs to some old ones.

Prior to the army set and codex release, GW revealed details on new units every week in October 2022, including tasty previews of:

Warhammer 40k - a legion of the leagues of votann

Leagues of Votann codex release date

The Leagues of Votann are a newly released faction, whose codex first went up for preorder on September 17, 2022. Rather than being available standalone, it could only be grabbed as part of the Leagues of Votann Army Set, alongside 20 Hearthkyn Warriors, three Hernkyn Pioneers, an Einhyr Champion, and Uthar the Destined. The standalone Leagues of Votann codex went up for pre-order on October 29 2022.

Warhammer 40k codex release dates - Warhammer Community photo showing the front cover artwork from codex chaos daemons

Chaos Daemons codex release date

Games Workshop released Codex: Chaos Daemons on September 3, 2022, having teased new daemonic saves and a bunch of miscellaneous rules for the faction in the run up to the release.

The new book has 152 pages and is “packed with eldritch esoterica, forbidden daemonology, and in-depth rules” – as well as rules for running armies specifically loyal to Nurgle, Khorne, Slaanesh, or Tzeentch – or mixtures of all of them. It also contains a “comprehensive Crusade section”, 56 unit datasheets, an army of renown for Be’lakor, 25 warlord traits, 24 relics, and 36 stratagems.

Warhammer 40k 9th edition codex release date guide: The Chaos Knights Codex front cover

Chaos Space Marines codex release Date

The Chaos Space Marines 9th edition codex went up for pre-order on Saturday, June 25, 2022, and was released on Saturday, July 2. Its 184 pages contain 55 pages of lore; 51 pages of main faction rules (including legion-specific rules, warlord traits, relics, and more); 19 pages of rules for the Crusade narrative mode, and 44 unit datasheets.

Its dark and brooding cover was shown off on May 4, and a plethora of Chaos announcements came hot on its heels. During Warhammer Fest 2022 (May 4 – May 7), we saw a whole new range of horrible (lovely) Chaos Space Marine models.

As well as new sculpts of the Chaos Space Marine Possessed and Chaos Cultists, there were three brand new, gruesomely mutated kits: the ‘Accursed Cultist Mutants’ and ‘Accursed Cultist Torments’. Meanwhile, there was confirmation of long-standing rumors that the World Eaters traitor legion would have their own codex, and brand new models.

The Eldritch Omens box set, released in February 2022, had already dropped some brand new plastic models for the Chaos Space Marines’ Warpsmith character and Chosen unit. These joined the faction’s previous batch of updated model kits, released in and around the Shadowspear box set in 2019.

Warhammer 40k 9th edition codex release date guide: artwork showing monstrous chaos knights

Chaos Knights codex release date

Codex: Chaos Knights was first available for pre-order on May 14, 2022, as part of a Chaos Knights codex army set. This contained two new models for the Chaos Knights faction, the Knight Abominant and savage War Dog miniatures rounding out a previously limited roster. On May 28, the codex (and the new models) were split up, available to buy separately for the first time.

New rules in this latest codex include the powerful Harbingers of Dread debuffs, and the option to dedicate your mighty mechs to one of the Chaos Gods, getting their keyword and a gnarly new ability as thanks for your service.

Warhammer 40k 9th edition codex release date guide: Two Imperial Knight Armiger models on the battlefield.

Imperial Knights codex release date

Codex: Imperial Knights stomped its way to pre-order on May 14, 2022, alongside the Chaos Knights army set. There were no new models for the noble mech army, but naturally plenty of new rules.

The new codex for the Imperial Knights codex packs Knightly teachings that can buff up your (relatively) little Armigers, and the Code Chivalric, which gives boosts to your army provided it can maintain its honor.

Warhammer 40k codex release date guide - warhammer community artwork showing Tyranids fighting Iyanden eldar

Tyranids codex release date

Codex: Tyranids came skittling to pre-order on chitinous limbs on April 16, 2022.

Few of the normal warning signs of an approaching Hive Fleet were triggered in the run up to this codex release. There weren’t many brand new ‘Nids miniatures leading up to the launch, with the notable exception of the bat-winged Parasite of Mortrex.

Now we know why – the Nids are getting a substantial range overhaul for Warhammer 40k 10th edition, including an update to the classic Termagants and a new Winged Tyranid Prime model.

There were plenty of rules updates for Tyranids lovers to tuck into, though. Synaptic Imperatives give your swarms adaptability in battle, while customisable Hive Fleet subfactions further your flexibility. And of course weapon buffs help bring the army up to par. The codex also has Tyranids Crusade rules for chowing down on an entire planet.

Warhammer 40k codex release date guide - Warhammer Community artwork from the codex front cover art showing an Eldar Autarch with Swooping Hawk Wings

Eldar codex release date

The Warhammer 40k Eldar codex went to pre-order on February 26, 2022, and was up for sale the following week, on March 5.

In a somewhat surprising move, the new Codex: Aeldari incorporates rules not only for the Ynnari subfaction and the new Corsair models, but also the Harlequins – who previously enjoyed a codex all to themselves.

Prior to the Eldar codex release, GW paraded a load of new models past our eyes, including the brand new Avatar of Khaine,  Maugan Ra, Shining Spears, and Warlocks models – plus a stream of of new rules previews for the faction’s Phoenix Lords, Dark Reaper and Howling Banshee Aspect Warriors, and iconic Shuriken weapons.

Games Workshop announced the new Eldar codex as part of its Las Vegas Open preview stream on February 1, 2022.

Warhammer 40k 9th edition codex release dates - Warhammer Community artwork from the Tau Codex showing a Tau commander battlesuit

Tau codex release date

The Warhammer 40k 9th edition Tau codex went to pre-order on Saturday, January 29, 2022 – and was released for sale on Saturday, February 5.

Prior to releasing the new T’au Empire book, GW published a string of reveals outlining much improved subfaction rules for the six different T’au Septs, as well as totally reworked rules for the Mont’ka and Kauyon Tactical Philosophies; Crusade narrative rules including options for something called ‘diplomacy’; and an array of terrifyingly up-powered ranged weaponry (with accompanying Relics) that, by all accounts, are Making T’au Shooting Scary Again.

Also making T’au enthusiasts happy is this book’s success in making a far wider variety of potential T’au battle-plans and list-building options competitively viable after a long period where most lists were dominated by triple Riptide battlesuits, Coldstar T’au Commanders, hordes of Drones, and not much else. Old favorites like Crisis Battlesuit squads, Devilfish transports, and Hammerhead gunships have been rejuvenated, and T’au-heads are loving it.

The first clue that the T’au Empire book was incoming came hidden in a Warhammer Community post at the end of October, Games Workshop revealed the T’au codex would release early next year. No specific release date was given, but GW said it would be one of the “first new codexes coming in 2022”.

Warhammer 40k codex release dates Adeptus Custodes codex cover

Adeptus Custodes codex release date

The 9th edition Adeptus Custodes codex went up for pre-order on Saturday, January 8, 2022, and was released a week later on Saturday, January 15. Originally planned to release this coming December, Games Workshop teased the codex as an accompaniment to Shadow Throne, a double army boxed set that pitted the golden boys against the insidious Genestealer Cults.

The most notable change made to the faction in this rulebook was to fully integrate the Sisters of Silence (the Imperium’s all-female arm of psyker hunters) into the army proper, where they had previously operated as an add-on rather than a full force. Besides that, the Custodes got extensively updated subfaction rules for the different Shieldhosts, and new, switchable ‘martial ka’tah’ buffs – as well as the usual bundle of new Stratagems, Relics, and Warlord Traits.

Warhammer 40k codex release dates Genestealer Cults codex cover

Genestealer Cults codex release date

Alongside the Custodians, the 9th edition Genestealer Cults codex also went up for pre-order on Saturday, January 8, 2022, and came out on Saturday, January 15. We can expect this one in early 2022, around the same time as the Adeptus Custodes’.

Similar to the release of the Grey Knights and Thousand Sons codexes alongside the Hexfire boxset earlier in 2021, the Genestealer Cults codex and Adeptus Custodes codex had been planned for release alongside the Shadow Throne battlebox, featuring the two armies in a battle beneath Terra. While that box released in December, shipping delays pushed the books to January 2022.

Warhammer 40k Black Templars codex cover showing a Space Marine shooting into the distance

Black Templars codex release date

Everyone’s favorite crusading Space Marines, the pious Black Templars, received their own codex supplement in November 2021. Technically, the codex had already been released as part of the Black Templars Army Box back in October, but only received a standalone release the month after.

it followed a similar template to the Beast Snagga launch: the boxed set was available for a short time and included a limited-edition copy of the new codex, which released independently a few weeks after. Now it’s out in the wild, and includes a multitude of datasheets, Strategems, Relics, Warlord Traits, and more for the most fastidious enforcers of Imperial might.

Warhammer 40k Codex release dates Orks codex cover

Orks codex release date

A standalone version of the 9th edition Orks codex is now out in the wild. Originally packaged in the Beast Snagga Orks army box – the introductory set for Warhammer 40k’s newest Ork faction – in July 2021, the book finally hit shelves independently on September 11. That means you can now grab the book even if you missed out on the Beast Snagga box earlier in the year.

The codex includes updated rules for all Ork factions, not just the squig-obsessed Beast Snaggas, and makes some hefty changes to the Waaaagh. ‘Dakka‘ is now a weapon type, rather than simply a hilarious kick-ass ability, and your basic Ork’s Toughness was boosted from four to five.

There’s also the usual assortment of updated subfaction rules for the Ork clans, Warlord Traits, Psychic Abilities, Relics, and Crusade campaign rules. It’s available in standard edition for $50 / £30, as well as a limited collectors’ edition.

Warhammer Community photo showing the front covers of the new Grey Knights and Thousand Sons Codexes for Warhammer 40k

Grey Knights and Thousand Sons codex release date

The Grey Knights and Thousand Sons went up for pre-order on GW’s webstore in August 2021, in both standard and collector’s edition variants.

We first got word of the new Grey Knights and Thousand Sons codexes back in May 2021, during a Warhammer Fest teaser video. Following more hints that “fire and magic” would be making its way to Warhammer 40k later this year, and an announcement that both codexes had been delayed, we’ve finally got confirmation of what’s in store.

Both the 9th edition Grey Knights and Thousand Sons codexes released alongside a double-army battlebox, Hexfire: Supernatural Warfare in the 41st Millennium. The box of 29 minis contained a small force for each faction, and two brand new character miniatures to lead them: Castellan Crowe for the daemon-hunting Grey Knights, and the new Infernal Master character model for the Egyptian-loving warp wizards.

The cover of Warhammer 40k's Adepta Sororitas codex, showing a futuristic infantrywoman wielding a mace and shield in the thick of battle

Adepta Sororitas codex release date

The Adepta Sororitas 9th edition codex went up for pre-order on June 5, before releasing a week later on June 12, 2021.

The codex includes full rules for all the new Sisters of Battle units, as well as updates for its existing range of models and wargear. There’s an extended Crusade rules section, plenty of point tweaks, and new rules for using prayers and hymns. The whole book is designed to provide much wider strategic variety among Adepta Sororitas armies, which has been found wanting in recent years.

Chief among their new units is High Abbess Morvenn Vahl. The Sisters’ new centerpiece character model, Vahl is given a lot of attention in the updated codex, and has been designed to synergize with whatever you stick in your Sisters of Battle army.

And there’s a lot of units to choose from. Alongside the faction’s codex, GW also released the long-teased Paragon Warsuits, Celestian Sacresants (as shown on the codex’s front cover), and Dogmata, as well as faction-specific Battle dice and datacards.

Warhammer Community photo showing the Adeptus Mechanicus Codex Cover

Adeptus Mechanicus codex release date

After its reveal in a May 16 Warhammer Community blog post, the 9th edition Adeptus Mechanicus codex went up for pre-order on May 22, 2021, and was released on Saturday, May 29.

The 120-page codex includes all the usual good stuff: full rules for the new AdMech units, updated datasheets for the army’s existing range of models, expanded lore, and bestiaries. There’s also a chunk dedicated to their technology-hunting Crusade rules.

You can also nab custom AdMech-themed player aid datacards and dice alongside the codex. Who knows, maybe they’ll help you curry favor with the Omnissiah.

Warhammer 40k codex release date Drukhari book cover

Drukhari codex release date

The first Xenos codex release of 2021,  the brand new Codex: Drukhari – or ‘Dark Eldar’ if you remember their original, non-copyrightable name – released on March 27.

Besides the bare essentials – inevitable points tweaks, new stratagems, rules for Crusade mode – the titbits we heard before the book’s release pointed to a fairly subtle upgrade. As is so often the case in Warhammer 40k, however, as soon as the rules were applied to real-world play, 9th edition Drukhari quickly became a top-tier competitive army, with multiple tournament wins.

Their pre-Christmas preview article established early on that the codex would offer “more attacks, higher damage, and lethal combat output across the board”. That promise has been borne out, and then some.

The pre-order and full release dates for the Drukhari codex were originally announced in a Warhammer Community article on Sunday, March 14 – along with Piety and Pain, a double-army boxset featuring Drukhari and Sisters of Battle, which went to pre-order at the same time. The Drukhari also got their own Combat Patrol starter set.

Warhammer 40k codex release dates Dark Angels codex book cover

Dark Angels codex release date

The Dark Angels Codex Supplement went live for pre-order on January 30 and released on February 6, 2021.

The Dark Angels supplement – the fourth such Space Marine chapter supplement – features custom-made “datasheets, Warlord Traits, Relics, and a Psychic Discipline, as well as a suite of Crusade campaign rules that represent the sombre quest of the Unforgiven”, according to GW.

Warhammer 40k codex release dates Death Guard codex book cover

Death Guard codex release date

The delayed new Death Guard codex (9th edition’s first rulebook released for a Chaos army)  went up for pre-order on January 16, 2021, and was released on January 23.

Like the others, it’s full of army-specific datasheets, rules, and bespoke Crusade content for the Death Guard, the vile, disgustingly resilient sons of the dread Daemon Primarch Mortarion.

Death Guard players had to wait months longer than planned, but when the codex did come, it came along with some extra goodies – primarily the long-teased and fundamentally foul Lord of Virulence model, and a Death Guard Combat Patrol starter box – the first of its kind for a Chaos army.

It also included some of the most interesting thematic rule-building GW has yet tried with its new Crusade campaign system, in the form of custom-concocted plagues for your Death Guard warband, each affecting nearby enemies in slightly different, yet equally revolting ways and developing in potency over successive games. It’s exceedingly yucky, but brilliant stuff.

Warhammer 40k codex release dates Blood Angels codex book cover

Blood Angels codex release date

The Blood Angels Codex Supplement was released on December 5, 2020.

The supplement is full of the usual army-specific datasheets, rules, and bespoke Crusade content for the scarlet-clad sons of long-lost Sanguinius, the Angel, along with a good chunk of lore and background information on this popular chapter.

Warhammer 40k codex release dates Space Wolves book cover

Space Wolves codex release date

The 9th Edition Space Wolves Codex Supplement was released on October 31, 2020.

The supplement, like its siblings, provided army-specific datasheets, rules, and bespoke Crusade content for the Space Wolves chapter of Space Marines. It’s 88 pages long, and features additional lore for the Sons of Russ, a bestiary and unique ‘Sagas’ rules to form custom, ever-changing Warlord Traits for your Space Wolves commanders.

Warhammer 40k codex release dates Deathwatch codex supplement book cover

Deathwatch codex release date

The 9th Edition Deathwatch Codex Supplement was released, along with the Space Wolves, on October 31, 2020.

The Deathwatch supplement includes – you’ve guessed it – army-specific datasheets, rules, and bespoke Crusade content for the elite Chamber Militant of the Ordo Xenos, a.k.a. the silver-shouldered badasses of the Deathwatch.

It is 64 pages long, and includes juicy Deathwatch-specific lore content and special rules on mixing Kill Teams with different specialisations.

Warhammer 40k codex release dates Space Marines codex book cover

Space Marines codex release date

The 9th Edition Space Marines codex was released on October 10, 2020, so it’s available now. There is also a special Collector’s Edition available, if you fancy it.

Codex: Space Marines contains heaps of lore for the first-founding chapters, as well as their more prominent successors. It is 208 pages in length, with 98 datasheets for new and existing units.

Space Marines were always going to be the longest book, with their 8,000,000 different units and bountiful sub-faction rules – but the 9th Edition codex is a seriously chonky tome, incorporating a whole raft of new rules from the Psychic Awakening series and the Adeptus Astartes’ own new Crusade rules.

Warhammer 40k codex release dates Necrons book cover

Necrons codex release date

The 9th Edition Codex: Necrons also launched on October 10, 2020. This is a smaller book than the Space Marines release, clocking in at only 120 pages. It’s still packed with new lore and, in general, represents a colossal and very exciting overhaul of how the Necrons work in battle.

There are 51 datasheets, including rules for the magnificent new Szarekh, the Silent King model, as well as the Necrons’ numerous other glorious new models, all their new army rules, Crusade content and other nuts and bolts.

We’ll have more details in upcoming guides but, for now, you should get hyped about the Necrons’ new ‘Command Protocols’ mechanic. It’s a stone-cold brilliant addition to Necron army-building, which, alongside the newly fleshed-out Dynasty abilities, will add a touch of unpredictability to the round-by-round flow of a battle.

World Eaters codex release date

The World Eaters Codex release date was February 11th.

The World Eaters are a bloodthirsty Chaos Space Marine legion pledged to the blood god Khorne. The codex released alongside revamped, plastic Khorne Berzerker models and a spectacular new model for the World Eaters primarch, Angron. Our reviewer Tim Linward was practically champing at the bit to build an army after his World Eaters codex review – they look like a fun force to see out the edition.

Warhammer 40k 9th edition codex release dates - Warhammer Community artwork from Eldritch Omens showing Chaos Space Marines and Eldar fighting

Warhammer 40k 9th edition codex release dates Imperial Armour compendium book cover

Imperial Armour Compendium

The 9th Edition Imperial Armour Compendium was released on October 30, 2020.

This was a stand-alone book release from GW’s specialist sister store, Forge World, to bring in-line a number of their special/limited edition miniatures with 9th Edition.