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Ultramarines is a 7-book reading order in Warhammer 40,000, spanning Space Marines. Below is every entry in suggested reading sequence — series order first, then in-universe chronology — so you can follow the story from start to finish and see where each book sits in the wider 40k timeline.
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An original, shareable Ultramarines reading-order poster — no Games Workshop art, just the books in order. Pin it, download it, or share the list.
Original summaries and chronology labels generated from the same catalog powering the atlas.
Graham McNeill
The debut Ultramarines novel introduces Captain Uriel Ventris of the Fourth Company, deployed to a politically fractured world where Imperial rivalries mask a far deadlier, ancient menace stirring beneath the surface. A classic, accessible entry point into Space Marine fiction that establishes Ventris as a hero willing to bend the rigid Codex Astartes.
900.M41 - 999.M41
era date, medium confidence
First published 2002
Graham McNeill
In the second Ultramarines novel, Uriel Ventris and his Space Marines join a desperate defence of an Imperial system against a vast, encroaching alien swarm. The book is a large-scale war story of attrition and command, deepening Ventris's character as the Imperium faces a relentless devouring foe.
900.M41 - 999.M41
era date, medium confidence
First published 2003
Graham McNeill
The third Ultramarines novel sends Uriel Ventris on a grim penitent journey into hostile, Chaos-tainted territory, far from the support of his Chapter. A darker, more harrowing chapter in the saga that tests Ventris against the horrors of the Traitor Legions and a daemon-haunted world.
900.M41 - 999.M41
era date, medium confidence
First published 2004
Graham McNeill
The fourth Ultramarines novel follows Uriel Ventris as he fights to return home, only to be drawn into the troubles of a beleaguered Imperial world burdened by a dark legacy. It continues the series' exploration of duty, loyalty, and the cost of straying from the Codex Astartes.
900.M41 - 999.M41
era date, medium confidence
First published 2008
Graham McNeill
A Graham McNeill novel following Captain Uriel Ventris of the Ultramarines as he returns to defend an Imperial world against a massive Tau invasion. It sits in the back half of the Uriel Ventris saga, picking up after his exile arc and continuing his struggle to prove himself a true son of Ultramar.
900.M41 - 999.M41
era date, medium confidence
First published 2009
Graham McNeill
Graham McNeill's climactic Ultramarines novel in which Uriel Ventris and his Chapter face a sweeping assault led by an old Iron Warriors nemesis. It serves as a capstone to the original Uriel Ventris series, resolving long-running threads of duty, rivalry, and redemption.
900.M41 - 999.M41
era date, medium confidence
First published 2010
Graham McNeill
A later entry in Graham McNeill's Uriel Ventris chronicles, originally released as an audio-format story, following the Ultramarines into renewed conflict on and around the world of Calth. It revives the Uriel Ventris line for modern 40k continuity, blending personal command drama with battlefield action.
900.M41 - 099.M42
range date, medium confidence
First published 2021
This reading order matches publication order — release sequence and suggested reading sequence are the same here. Browse every book by release year on the publication-order page.