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The Codex: Grey Knights for the current 10th Edition of Warhammer 40,000 was released on August 2, 2025. Games Workshop does not officially sell or distribute codexes in PDF format; instead, players must purchase the physical book to receive a digital unlock code for the Warhammer 40,000 App. Official Rules & Access The 10th Edition Codex
: This is the current source for Grey Knights rules, including updated datasheets, detachments, and stratagems.
Free Faction Pack (Index): Before the codex launch, a free "Index: Grey Knights" PDF was provided. An updated Grey Knights Faction Pack PDF is still available on Warhammer Community for quick reference, though it is often superseded by the full codex for matched play.
Alternative Digital Viewers: Community resources like Wahapedia provide a searchable, web-based version of the 10th Edition rules. Summary of Rules History Release Date 10th Edition (Current) August 2, 2025 Active Index (10th Ed) Mostly superseded by Codex 9th Edition August 2021 Invalid for 10th Edition play All 10th edition Warhammer 40k Codex release dates
The 10th Edition Codex: Grey Knights , officially released on August 9, 2025, is a 104-page hardback that transitions the Daemon-hunting sons of Titan from their temporary Index rules into a fully realized faction. Core Gameplay: The Masters of Mobility
The codex solidifies the Grey Knights' identity as the most mobile army in Warhammer 40,000.
Teleport Assault: This signature army rule allows you to remove units from the battlefield at the end of your opponent's turn and redeploy them in your next Reinforcements step.
Detachments: The book features five distinct detachments. While the Teleport Strike Force remains a staple for hyper-mobility, new options like the Warbane Task Force provide variety, though some require careful wording checks following the June 2025 balance update.
Psychic Might: Unlike previous editions where psychic powers were a separate phase, they are now integrated into weapon profiles and abilities, making the army much faster to play. Unit Highlights & Meta Shifts grey knights 40k codex pdf
Brotherhood Terminators: Widely considered the "gold standard" unit in this book. With Toughness 5, a 4+ invulnerable save, and the ability to return a slain model every turn via the Narthecium, they are exceptionally difficult to shift from objectives.
Nemesis Dreadknights: Remain a "photogenic" centerpiece but face challenges with raw power. Critics note that while they are mobile, the general Strength 6 on Nemesis weapons can make it difficult to crack heavy vehicles or high-toughness monsters in melee.
Paladins: In this edition, Paladins are often viewed as outclassing standard Terminators for pure offensive output, depending on current point costs. The Lore: Forbidden Secrets
The codex delves into the forbidden history of Chapter 666, including the Terminus Decree—the ultimate secret duty to kill or re-entomb the Emperor should he ever attempt to ascend or be reborn. It also reaffirms that the Grey Knights' gene-seed is unique, engineered directly from the Emperor's genome rather than a traditional Primarch. Grey Knights 10th Edition Codex Review | Warhammer 40k
The Codex: Grey Knights (10th Edition) was officially released in July 2025 [2, 13, 20]. While many players look for PDFs, Games Workshop provides the official digital rules through a unique code found in the physical hardback, which unlocks the content in the Warhammer 40,000 App [9, 15].
Below is a draft post summarizing the essential details of the 10th Edition Codex for use on community forums or social media.
🛡️ [DRAFT] Codex: Grey Knights 10th Edition – The Silver Tide Returns
The wait for the sons of Titan is finally over. The Codex: Grey Knights for 10th Edition has arrived, evolving the faction from the initial Index rules into a fully realized psychic powerhouse. Key Army Mechanics
Teleport Assault (Army Rule): The core mobility of the Grey Knights remains elite. At the end of your opponent's turn, you can pull up to three units (in a 2,000pt game) off the battlefield and redeploy them in your next Reinforcements step [1, 4].
New Detachments: The codex introduces five distinct ways to play, moving beyond the standard Teleport Strike [5, 14]:
Warpbane Task Force: Focuses on "Hallowed Ground" zones that buff psychic resolve and damage against daemonic threats [8, 21].
Sanctic Spearhead: Enhances the heavy-hitting power of Nemesis Dreadknights and Paladins [14].
Hallowed Conclave: Primarily buffs Purifiers and specialized infantry [14]. Standout Units & Updates
Grand Master in Nemesis Dreadknight: A "tournament staple" that can duel Greater Daemons. His Surge of Wrath ability allows full re-rolls for hits, wounds, and damage against Monsters/Vehicles once per game [16, 22].
Paladins: Now "properly terrifying" with expanded weapon options and high durability in melee [13].
Kaldor Draigo: Continues to lead as the Supreme Grand Master, providing essential deep-strike buffs to his unit [36]. Where to Get the Rules
Physical Codex: Includes a 104-page hardback with lore, gallery, and the all-important digital unlock code [27].
Warhammer App: Once you register your code on MyWarhammer, all datasheets and stratagems are accessible on your phone for quick reference during games [9, 15].
Free Resources: For those not ready to buy, the Warhammer Community site still hosts official "Faction Pack" PDFs and errata updates (Version 1.0) for basic gameplay [8, 10]. Here is the useful, factual content regarding the
The Codex: Grey Knights for the 10th Edition of Warhammer 40,000 released on August 9, 2025. While reviews generally praise the "high-speed" mobility the book offers, critics frequently describe it as a "cautious" update that relies heavily on existing staple units rather than a complete faction overhaul. Core Gameplay & Army Rule
The army's identity revolves around its signature Gate of Infinity rule (formerly Teleport Assault), which allows you to redeploy a set number of units each turn.
Mobility Focus: You can pick up units at the end of your opponent's Fight Phase and place them in Strategic Reserves, allowing for constant pressure and "uppy-downy" tactics.
The "Cautious" Critique: Reviewers from sites like Goonhammer note that while the movement is top-tier, the lack of significant datasheet updates means the army still struggles to "punch up" against high-toughness (T11+) targets in melee. New Detachments
The Codex introduced five new ways to play, though players often cite three as the primary focus:
Sanctic Spearhead: Specifically designed for Dreadknight enthusiasts. It provides powerful stratagems that allow vehicles to ignore terrain and hit harder against Monsters and Vehicles.
Hallowed Conclave: Focuses on Terminators, providing them with "Fall Back and Charge" to keep them from getting bogged down in "tarpit" combat.
Banishers: An aggressive, melee-heavy detachment that grants "Lethal Hits" or "Sustained Hits" on a successful Leadership test.
Augurium Task Force: A finesse-based detachment that allows you to redeploy an extra unit at the start of your movement phase. Standout Units
Purifiers & Castellan Crowe: Widely considered the "big winners" of the book. Purifiers gain improved wound re-rolls, making them highly effective anti-infantry when paired with Crowe. Paladins: Now get +1positive 1
Damage on the charge, making them terrifying in close combat, though they lost their previous "-1 to wound" defensive ability.
Grand Master in Nemesis Dreadknight: Remains the army's premier "problem solver" for heavy armor, especially with new weapon upgrades. Key Disappointments
The most significant complaint from the community is the removal of Kaldor Draigo
and Brother-Captain Stern from the 10th Edition Codex. Many players feel this leaves a "Draigo-sized hole" in the army's tactical options, specifically regarding his previous charge-reliability buffs.
For a full digital reference of rules, many players continue to use the Grey Knights section on Wahapedia.
Grey Knights Codex for the 10th Edition of Warhammer 40,000, released in mid-2025, serves as the definitive guide for fielding the elite, psychic daemon hunters of Titan. Core Gameplay & Army Rules Teleport Strike Force : The primary army rule, often centered around the Gate of Infinity
, allows Grey Knights units to be placed into Strategic Reserves at the end of an opponent's turn and redeploy almost anywhere on the battlefield in the following movement phase. Psychic Prowess
: Unlike previous editions, psychic abilities are now integrated into unit profiles as special weapon keywords or specific abilities, such as the Surge of Wrath
for Grand Masters, which provides re-rolls against Monsters and Vehicles. Hallowed Ground : Featured in specific detachments like the Warpbane Task Force Conclusion The "Grey Knights 40k Codex PDF" is
, this rule creates zones of consecration that enhance psychic powers and unit resolve. Key Detachments
The codex includes several thematic detachments, expanding on the initial Index rules: Teleport Strike Force : Focused on high mobility and tactical redeployment. Warpbane Task Force
: Optimized for pure damage output and re-rolls, particularly effective against daemonic or high-threat targets.
: A detachment noted for its specific stratagems, though community reviews highlight mixed internal balance. Book Contents Grey Knights Codex
In the grim darkness of the far future, the Grey Knights stand as the ultimate shield against the encroaching tides of the Warp. While many seek out a "Grey Knights 40k Codex PDF" to master the tabletop strategies of Chapter 666, the true essence of these warriors lies in their unwavering sanctity and psychic might. The Silver Tide of Titan
Operating from the moon of Titan, the Grey Knights are the Chamber Militant of the Ordo Malleus. They are unique among the Adeptus Astartes, as every single Battle-Brother is a powerful psyker, trained to turn the warp against the very daemons that call it home.
Incorruptible Souls: In over ten thousand years of service, not a single Grey Knight has ever fallen to the temptations of Chaos. This purity is forged through grueling trials and an unbreakable faith in the Emperor’s light.
The 666th Chapter: Born of a secret founding during the Horus Heresy, their origins are tied to Malcador the Sigillite and the legendary "Eight" who first took up the mantle.
Legendary Leadership: Figures like Kaldor Draigo, the Supreme Grand Master, have become myths in their own right, allegedly wandering the Warp itself and striking down daemon princes on their own turf. Mastering the Codex
For players looking to field this elite force in Warhammer 40k, the Codex is the definitive guide to their unique rules, such as "Teleport Strike" and their devastating Nemesis Force Weapons.
Tabletop Prowess: On the table, Grey Knights are a "low model count, high impact" army. They rely on mobility, psychic buffs, and overwhelming firepower to compensate for their lack of numbers.
Aesthetic & Lore: From the iconic silver Aegis armor to their grim battle cry, "We Are the Hammer!", they represent the most specialized and secretive defenders of the Imperium.
While digital versions are often sought for quick reference, the physical Codex: Grey Knights remains the cornerstone for any commander looking to banish the darkness in the 10th edition and beyond. For deep dives into their history, fans frequently turn to the Lexicanum or the Warhammer 40k Wiki.
The Grey Knights Codex is divided into several sections:
To maximize your use of a codex PDF (legal or reference), you need to know the internal structure. Here is what a standard Grey Knights book offers:
Because the Grey Knights are a "non-Codex compliant" Chapter, they often receive updates via White Dwarf or Imperial Armour Compendium rather than a standalone 10th Edition codex (as of this writing). Consequently, most players searching for a grey knights 40k codex pdf are actually seeking the Index: Grey Knights or the Munitorum Field Manual for points.
Note on 10th Edition: Currently, Grey Knights use the Index: Grey Knights (released at the start of 10th Ed). There is no standalone 10th Ed codex yet, so a PDF of the index is available legally via Warhammer Community’s download page.
For those looking for a digital copy of the Grey Knights 40k Codex, there are several options available:
If you want a legacy PDF for lore or older editions, check second-hand eBook sellers or Warhammer+ Vault:
| Edition | Year | Notes | |--------|------|-------| | 10th (current) | 2026? | Not released; using Index | | 9th | 2021 | Last full codex; PDF available for purchase digitally | | 8th | 2017 | Index + Psychic Awakening: Ritual of the Damned | | 7th | 2014 | Includes Nemesis Vanguard Strike Force formation | | 5th | 2011 | First standalone Grey Knights codex | | 3rd | 2003 | Daemonhunters (Inquisition + Grey Knights) |