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Warhammer 40,000 10th Edition Rulebook

Warhammer 40,000 10th Edition Rulebook
Editor(s) Games Workshop
Released June 2023[4]
Pages 280[4]
Preceded by Warhammer 40,000 9th Edition Rulebook

The Warhammer 40,000 10th Edition Rulebook is the 10th core rulebook for the Warhammer 40,000 tabletop miniature game, published in June 2023 by Games Workshop.

Games Workshop stated their intention with the 10th Edition to streamline the rules, particularly with regards to stratagems and army selection choices. Force organization charts were also eliminated in favor of simply picking a warlord character and units a player wants to field. Developers also sought to reduce the amount of rulebooks players needed to have in order to a fully up-to-date army. All Index rules for all factions in the 10th Edition are available for free upon the launch of the core rulebook.[1]

Due to the change in rules, all rulebooks and codices from the 9th edition, save the Arks of Omen Series and Boarding Patrol books, are being retired upon the release of the 10th Edition.[1]

The 10th Edition Rulebook was first released with the Leviathan box starter set.[2]


The galaxy writhes in the mailed fist of all-consuming war. The Imperium teeters on the brink of annihilation, beset upon all sides by heretic warlords, daemon-summoning witches, and rapacious alien empires. The Great Rift sunders the void, a ragged wound torn through the heart of the Emperor's realm and bleeding madness and mutation across all. In every star system and upon every planet, battle rages more fiercely than ever before as loyalists, heretics, and aliens tear reality itself apart in their war dominance. Every day the flames rise higher – this is a more terrible era than ever before, for there is no peace amongst the stars...[4]

Book Contents


The book opens with an introduction to the hobby through its four keys – Collect, Build, Paint, and Play. You'll find out how to start your collection of Citadel miniatures, learn how people build and paint their models, and get suggestions to tools and guides that will help further. You'll also begin your journey as a commander with a look at how, where, and why players engage in dynamic tabletop battles of Warhammer 40,000, an example Battle Report between two armies, and an explanation of different styles of play – self-contained Combat Patrols, competitive Chapter Approved games, and narrative Crusade campaigns.[4]


The first part of this guide explores the decaying Imperium and the galaxy in which it resides – the long-dead God-Emperor who sits eternal on his Golden Throne, the High Lords and Adeptus bureaucracies that rule in his name, the fanatical Ecclesiarchy which preaches the Imperial faith, the secretive Ordos of the all-seeing Inquisition, and the post-human Space Marines who fight battles no other could endure. You'll also discover the hellish dimension known as the warp, which fuels psychic mutation and interstellar travel, the mad Gods of Chaos who rule its infinite depths, the blasphemous cults that serve them, and the Great Rift that splits realspace itself in two.[4] There's also a double-page galactic map, highlighting vital planets, systems, war zones, and warp storms.[4]

The second half delves into the history of the setting, from its myth-shrouded past to the apocalyptic clashes of its present. You'll find a timeline of Humanity's development through the Ages of Terra and Technology, the Ages of Strife and Darkness, all the way to the Age of the Imperium. You'll explore the superstitions that fuelled the Imperium's worship of lost technology and its fearful hatred of aliens and mutants, the Great Crusade through which the Emperor sought to unite Humanity, the Horus Heresy that set the galaxy aflame, and the millennia of war and loss that shaped the Imperium.[4]

Finally, you'll enter the Era Indomitus – marked by the opening of the Great Rift, the birth of a new God of Death, and the revival of the Primarch Roboute Guilliman. Even as the new Lord Regent's Indomitus Crusade strives to reunite the dying Imperium, a psychic awakening heralds a terrifying Age of Witches, and Abaddon the Despoiler plagues the galaxy with aid of the daemonic demigod Vashtorr and their Arks of Omen. The return of Lion El'Jonson, the First Primarch of the Emperor, only forestalls total disaster – and with the resurgence of Hive Fleet Leviathan, the galaxy may be reduced to nothing but food for an alien swarm.[4]


Explore each of the factions waging war in Warhammer 40,000, with detailed background information plus tactical descriptions and a miniature showcase of their Combat Patrols.[4]


Core Rules cover the general principles and core concepts of Warhammer 40,000, the datasheets and characteristics used by your models, and the rules that apply to the five phases of the game: the Command phase, the Movement phase, the Shooting phase, the Charge phase, and the Fight phase. You'll also find Stratagems and abilities used by all armies, as well as additional rules for elements like Strategic Reserves, terrain features, and aircraft.[4]

Lastly, there are rules for mustering an army, setting up your models for a game, controlling objectives to claim victory, and a mission – Only War – to get you started playing right away.[4]


This section provides an introduction to the Combat Patrol game mode, an explanation of the Battle Ready standard of painting for games, and six different Combat Patrol missions – Clash of Patrols, Archeotech Recovery, Forward Outpost, Scorched Earth, Sweeping Raid, and Display of Might – each with their own objectives, mission rules, and deployment maps for a variety of game experiences.

The book concludes with a separate index for the Core Rules, acting as a handy reference for use while playing games.