Best Horus Heresy book order 2023

The Warhammer 40k Horus Heresy books are magnificent, but a mess - so follow this faultless, scientifically correct Horus Heresy reading order.

Warhammer 40k Horus Heresy book order - Games Workshop artwork showing the Emperor on his Golden Throne within the Sanctum Imperialis

Looking for the ideal, stress free Horus Heresy book order? Good plan. A sprawling series of 62 interconnected dark sci-fi novels explaining how Games Workshop’s Warhammer 40k universe came to be, the Horus Heresy is magnificent

But it’s also a colossal, knotted mess with no clear sequence to follow. Fear not, though – we’ve scanned all the Warhammer 40k books with our servo-skulls to bring you the best Horus Heresy reading order possible.

Inside its multitude of Warhammer 40k books, you’ll find over-the-top action; foul betrayals; the dark machinations of the 40k Chaos gods, cameo appearances from various other Warhammer 40k factions; and countless pages on the Imperium of Mankind, with its heroics and hypocrisies. It’s essential reading for 40k fans, but it’s a lot – especially if you’ve only just picked up your first Warhammer 40k starter set and started your journey.

Before launching into it, here’s a handy table showing our scientifically proven best Horus Heresy book order, organised into stages:

Stage Theme Books
1 Meeting the gang
  • Horus Rising
  • False Gods
  • Galaxy in Flames
  • The Flight of the Eisenstein
  • Fulgrim
  • A Thousand Sons
  • Prospero Burns
  • The First Heretic
  • Know No Fear
  • Angel Exterminatus
  • Betrayer
  • Vengeful Spirit
2 Pushing on with the plot
  • Fear to Tread
  • The Unremembered Empire
  • Pharos
  • Angels of Caliban
  • Ruinstorm
  • Vulkan Lives
  • Deathfire
3 The gathering storm
  • Master of Mankind
  • Old Earth
  • Wolfsbane
  • Titandeath
  • Slaves to Darkness
  • The Buried Dagger
4 The Siege of Terra
  • The Solar War
  • The Lost and the Damned
  • The First Wall
  • Saturnine
  • Mortis
  • Warhawk
  • Echoes of Eternity
  • The End and the Death Volume I
  • The End and the Death Volume II

Horus Heresy book order - A warhammer artwork showing Thousand Sons terminators in the horus heresy era

Meeting the gang

The first five novels are utterly essential.

1 – Horus Rising

Horus Rising is told mostly from the perspective of the Space Marine Garviel Loken as he is inducted into the inner circle of Horus Lupercal, Warmaster of the Imperium. After centuries persecuting the Great Crusade to reunite the lost worlds of mankind, the Space Marines must confront their assumptions about their place in the universe. Meanwhile, the treacherous Erebus of the Word Bearers begins to enact a scheme that will eventually topple the galaxy into ruin.

2 – False Gods

In False Gods, Horus is laid low on the moon of Davin, thanks to a plot by Erebus. In an effort to save his life, his loyal sons deliver him into the clutches of a cult devoted to the ruinous powers of Chaos. Horus awakens a changed man.

3 – Galaxy in Flames

In Galaxy in Flames Horus’ treachery is laid bare. On Istvaan III Horus, and his brother Primarchs Mortarion of the Death Guard, Angron of the World Eaters, and Fulgrim of the Emperor’s Children, commit the parts of their legion most loyal to the Imperium to a ground assault, before virus-bombing the planet’s surface. Forewarned, some Loyalists survive, and the traitor forces root them out in a gruelling siege.

4 – The Flight of the Eisenstein

The Flight of the Eisenstein begins in the void above Istvaan III, as Captain Saul Garro of the Death Guard is warned of the Warmaster’s treachery. He escapes from the traitor forces in a single vessel and must make a desperate warp-jump towards Terra, all the while contending with the depredations of the Plague God Nurgle.

6 –  Fulgrim

Fulgrim begins before the Heresy, following the perfectionist Emperor’s Children Space Marines as they encounter a strange alien civilization that changes their destiny forever. It ends on Istvaan V.

An Imperial retribution fleet arrives to crush Horus’ rebellion, and is in turn set upon by traitor elements in its own rearguard. Fulgrim faces off against his once beloved brother Ferrus Manus of the Iron Hands in single combat, and slays him.

After these first few books, the Horus Heresy splinters a little, with many of the following books covering events which precede the first five novels. However, if you have a particular affinity for a legion, be sure to check out the books which focus on them – such as Descent of Angels and Fallen Angels for Dark Angels fans.

The next truly essential entry is A Thousand Sons, as the fall of Magnus the Red and his Thousand Sons is an essential part of the plot. Follow it up with Prospero Burns to see the fallout from Magnus’ machinations.

Warhammer artwork showing Fulgrim, Primarch of the Emperor's Children, before turning to Chaos

If you’ve become invested in seeing more of Chaos and how deep the rot goes, we’d recommend diving into these Chaos-centric novels.

The First Heretic looks at how far back Chaos’ taint goes. Know No Fear is a rollicking ride of revenge and betrayal. Angel Exterminatus is a crazy Chaos road trip to the other side of reality, whilst Betrayer gives some much-needed time to the Emperor’s angriest son, Angron. Finally, Vengeful Spirit gives us a look at what’s been going on with our absent Warmaster…

Horus Heresy book order - Warhammer artwork showing Space Wolves fighting Thousand sons during the Horus Heresy

Pushing on with the plot

From this point onwards the series explores two plot threads, Imperium Secundus and the mysteries of Vulkan.

In the Imperium Secundus strand, the Ultramarines, Dark Angels, and Blood Angels all get their chances to shine as their stories become interwoven through Fear to Tread, The Unremembered Empire, Pharos, Angels of Caliban, and Ruinstorm. Choose door number two instead, and you’ll see fan-favourites the Salamanders and their beloved Primarch go through hell and back in Vulkan Lives and Deathfire.

Horus Heresy book order - Warhammer artwork showing the walls of the Imperial palace on Terra, and Primarch Rogal Dorn

The gathering storm

You’ve come a long way and the scent of victory is in the air. Here are our picks for the final approach:

The Master of Mankind is an essential peek behind the veil of the Emperor himself. Old Earth ties everything together that’s happened to the Ultramarines, Vulkan, Iron Hands, Salamanders…and more.

Chaos, as is its wont, begins to eat itself near the end of the Heresy. Wolfsbane gives us some real insight into the critical failings of Chaos, while Titandeath shows the price that the traitor Titan Legions are willing to pay for glory. Then Slaves to Darkness shows just how hard it is to organise a force composed by elemental incarnations of disorder.

Finally, the series ends on a true high note. The Buried Dagger sees the series park right outside Earth, ready for the Siege of Terra to begin, and ties a neat bow on everything that’s come before.

Warhammer 40k Horus Heresy book order - Games Workshop artwork showing Blood Angels Primarch Sanguinius on the steps of the Imperial Sanctum

The Siege of Terra

The Siege of Terra series forms the long-awaited, epic conclusion to all the Horus Heresy’s many plots, machinations, ambushes, and preambles.

Warmaster Horus Lupercal and his vast armada of Chaos Space Marines, traitor 40k Titans, mortal cultists, and daemon allies have at last arrived at the Sol system to launch their final assault on Terra (Earth), aiming to kill and supplant the Emperor of Mankind himself.

There are eight full Siege of Terra novels (and an as yet unconfirmed number of orbiting novellas) – and we reckon all the main titles are essential reading. This is the crescendo and climax of the whole Heresy series, after all!

  • The Solar War
  • The Lost and the Damned
  • The First Wall
  • Saturnine
  • Mortis
  • Warhawk
  • Echoes of Eternity
  • The End and the Death Volume I
  • The End and the Death Volume II (unreleased)

As you’d imagine, while there are lots of intertwining, smaller storylines and character groups that run through these novels, each finding some measure of closure in their own stories – the series is effectively one very long book in eight volumes.

Warhammer 40k Horus Heresy book order - Games Workshop artwork showing Perturabo and Iron Warriors attacking

In The Solar War, we see the chaos fleet overwhelm the solar system’s outer defences, commanded by master strategist Perturabo of the Iron Warriors.

In The Lost and the Damned, the traitor forces bombard the planet from orbit to the point of environmental destruction, before launching their ground assault on the continent-sized defensive trenchworks surrounding the Imperial Palace. The attack is led by Mortarion and the Death Guard, joined by his brother Angron of the World Eaters, now a rage-fuelled, daemonic demigod of destruction. Blood Angels primarch Sanguinius flies to the defenders’ aid at key points, but the conclusion is never in doubt.

After a heroic effort, the mostly human Imperial Army defences are overwhelmed – and The First Wall opens with a new focus: the outer walls of the Imperial Palace itself, defended by Rogal Dorn‘s yellow-clad legion of Imperial Fists. The keystone is protecting the Lion’s Gate spaceport – Terra’s biggest port facility, which, if captured by Horus’ forces, could be used to land their Titan legions on the surface. We, er, won’t spoil how that goes.

Author Dan Abnett’s Saturnine is a more complex read. The Imperial Palace (more a thousand-mile-wide fortress city than a building) has many rings of vast walls and gunlines for the traitor host to fight through and, while they do, each side is watching the clock, watching the skies for incoming Ultramarines, and searching for a cunning master-stroke strategy to turn the tables.

Warhammer artwork showing battle titans in the Horus Heresy era

If you like hundred-foot-high battle robots, John French’s Mortis is a hoot. With the traitors well and truly settled on the surface, Horus can finally deploy his titans; the loyalists deploy their remaining titan legions in turn, and we get a series of awesome engine-on-engine confrontations across the blasted ruins of the Outer Palace.

Chris Wraight’s Warhawk is, frankly, a bit of a love letter to Jaghatai Khan and the White Scars. With the traitors closing in on the Inner Palace, the praetorian of Terra Rogal Dorn commands all remaining forces to converge on defensive positions and hold out as long as they can. But the White Scars don’t like huddling behind walls, and instead sally out to forestall the traitor advance. Watch out for one of the series’ best primarch grudge matches here.

Warhammer 40k Horus Heresy book order - Games Workshop artwork showing Blood Angels Primarch Sanguinius on the steps of the Imperial Sanctum

Aaron Dembski-Bowden’s Echoes of Eternity is a gripping study in the unique emotional charge found in the penultimate stages of a siege. Think ‘Aragorn and Theoden in the Hornberg with the Uruk-Hai banging on the door’. Horus’ forces have breached the Inner Palace and are advancing on the Imperial Sanctum – the core building within which the Emperor sits on his Golden Throne.

The Imperial Fists are all but slaughtered; the remaining White Scars are holed up in the faraway Lion’s Gate spaceport; Blood Angels are mostly spent, and beating a fighting retreat. Reinforcements from the Ultramarines appear nowhere near. The end is nigh – but the loyalists fight on.

The final Horus Heresy Siege of Terra book – The End and the Death – comes in two volumes, of which volume one released on February 28, 2023. The Imperium’s last defenders are dwindling; the Imperial Palace is swimming with blood; Terra itself is sinking into the Warp; and Warmaster Horus’s final victory seems inevitable – but, at long last, the Emperor rises from his throne…

Warhammer 40k Horus Heresy book order - Games Workshop graphic with a text excerpt introducing the final books

We know what’s coming in the Horus Heresy’s absolute finale: the death of Sanguinius and the final duel between the Emperor and Horus aboard the Vengeful Spirit. Beyond that, we’ll have to wait and see…

If you’re hungry for more Warhammer action and want to see how your favourites turn out in ten thousand years, have a gander at our guides to the Imperium of Man and the Warhammer 40k chaos forces – or get an overview of every army battling it out in the 41st millennium with our guide to all the current Warhammer 40k factions.