Warhammer 40,000: Codex: Chaos Space Marines

The Traitor Legions, Codified

Every Chaos Space Marine warband that has ever turned its back on the False Emperor has a place in this book. The Codex: Chaos Space Marines is the essential faction supplement for fielding the Heretic Astartes in Warhammer 40,000 — the authoritative rules and lore resource for one of the game's most iconic and diverse armies. From the grinding brutality of World Eaters detachments to the plague-ridden patience of Death Guard allies, from mortal Cultist mobs to the towering immortality of Daemon Princes, this codex gives every corner of the Traitor Legions its full rules treatment.

What's Inside

The codex contains 48 datasheets covering the full breadth of the Chaos Space Marines roster. Each datasheet details unit profiles, wargear options, and unique abilities — giving you everything needed to build, customize, and command your warband on the tabletop. The range spans the full spectrum of Chaos corruption: wretched Spawn twisted beyond recognition at one end, and the immense battlefield presence of Daemon Princes at the other, with Legionaries, Chosen, Havocs, Helbrutes, and much more in between. Beyond the rules, the book delivers faction lore and background that brings the Heretic Astartes to life — the history of the Long War, the structure of warbands, and the dark ambitions that drive each traitor forward. Painting guides and showcase galleries offer inspiration whether you're building a single striking centrepiece or an entire Legion.

Who Should Own This

Any player running a Chaos Space Marines army in Warhammer 40,000 needs this codex as their primary rules reference. It is the current edition supplement for the Heretic Astartes faction — not a supplement or expansion, but the core faction book. New players building their first traitor warband will find it invaluable for understanding the full range of available units and how they function together. Veteran collectors returning to the faction or updating from an older edition will want it for current datasheets, abilities, and army construction rules. It also makes a genuinely strong gift for any 40K player who runs Chaos — if they collect Heretic Astartes in any form, this book belongs on their shelf.

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