The short answer
The principle boils down to one word: the codex. Anyone who has ever hosted a symbiote keeps its genetic imprint in their spinal cord, and Carnage, raised to the rank of Knull's avatar, hunts down those former hosts to tear out the fragments and wake his god. Here is how the hunt unfolds.
Some sagas make the reader shiver; others make them bleed. Absolute Carnage belongs firmly to the second category. Published in 2019, written by Donny Cates and drawn with wild energy by Ryan Stegman, this major event in the Spider-Man universe landed like an axe blow. For months, readers witnessed a methodical slaughter, orchestrated by the most unstable killer in the whole Marvel pantheon, turned into the armed hand of a deity from the depths of space. This was no longer a simple clash between a hero and a blood-red psychopath: it was the announced awakening of a god, the rousing of a cosmic terror that had slept for aeons. Let's dive together into this pitch-black arc, where every page seems to ooze blood and where no victory is won without a scar.
Origins: who is Carnage, the scarlet butcher?
To understand the scale of the disaster this event unleashes, you first need to go back to the nature of its antagonist. Cletus Kasady, alias Carnage, is no ordinary supervillain. Even before he met a single symbiote, Kasady was already a serial killer, a deeply disturbed mind who saw chaos and murder as a form of absolute freedom. Where other criminals chase money or power, Cletus wants only one thing: to watch the world collapse in blood.
When this psychopath merges with an offspring of the black symbiote, the result defies belief. Carnage becomes an unstable creature, able to generate organic weapons at will, boundlessly violent and utterly unpredictable. Unlike Venom, who eventually develops a twisted but genuine moral code, Carnage has never known the slightest redemption. He is the symbiote in its purest and most destructive form. It is precisely this total absence of restraint that makes him the ideal candidate to become the servant of a force far older and far more terrible than himself.
Knull, the sleeping god who changes everything
At the heart of Absolute Carnage stands a figure Donny Cates had carefully planted in his earlier stories: Knull, the god of the symbiotes. This primordial entity, born before the creation of the known universe, is the true creator of the symbiote race. According to the mythology Cates unfolds, every symbiote is merely a fragment of this dark god's will, a shard of his consciousness scattered across the cosmos.
Knull sleeps, imprisoned far from Earth, but his influence has never stopped creeping through the shadows. The whole plot of Absolute Carnage rests on one chilling idea: waking this god. And to do it, Carnage becomes his avatar, his bloody prophet, his instrument on Earth. This revelation retroactively transforms the entire history of the symbiotes in the Marvel universe. What seemed to be nothing more than alien parasites suddenly becomes the nervous system of a sleeping deity, waiting for the signal of its awakening. The threat is no longer local, it is cosmic.

The scarlet butcher
Spider-Man Carnage Mask
Take on the terror of Absolute Carnage with this mask bearing the likeness of Marvel's most bloodthirsty symbiote. Perfect for a cosplay that chills the blood.
The codexes: the terrifying mechanics of the hunt
The central element that structures the whole story is the concept of the 'codex'. It is a narrative find as simple as it is devastatingly effective. Every time a person has been bonded to a symbiote, even for an instant, a copy of the symbiote god's genetic code is etched into their spinal cord. This imprint, this codex, persists even after the symbiote has left its host. It is an invisible scar, a divine mark inscribed deep in the spine.
Now, these codexes are exactly what Knull needs in order to wake up. Carnage's mission then becomes appallingly clear: hunt, kill and devour every person who has ever carried a symbiote, in order to harvest these fragments of code and offer them to his god. Every former host becomes prey. And the list is long, terribly long, because over the decades countless heroes and villains have been bonded, however briefly, to one of these parasites. To measure the scale of that shared history, you only have to think of the relationship between Spider-Man and the symbiote, which goes back years and makes the web-slinger a prime target.
This mechanic turns the Marvel universe into one vast hunting ground. Nobody is safe, and every panel can become the stage for a fresh massacre. Carnage does not simply kill: he harvests. He becomes the reaper of a macabre crop whose ultimate purpose is to plunge the world into darkness.
An enhanced Carnage, almost invincible
The Carnage of Absolute Carnage is not the killer readers knew. Invested with Knull's power and fed by the codexes he devours, he becomes a force of nature that is almost impossible to stop. His scarlet skin is studded with black patterns that echo the god he serves, a visible sign of his transformation into an avatar. Where the classic Carnage was already formidable, this enhanced version operates on a completely different level of threat.
More terrifying still, this new Carnage has the ability to turn entire crowds into symbiotic creatures. These unfortunate souls, nicknamed the 'Carnage-ized', become the soldiers of his macabre army, extensions of his corrupted will. He no longer fights alone: he spreads the contamination, multiplying his arms and his fangs across the city. This epidemic dimension gives the event a nightmarish scale, where every civilian you pass can turn into a red and black monster in the butcher's service.
Faced with such power, the heroes quickly understand that none of them can bring Carnage down alone. The only chance of survival lies in union, in a coalition of everyone who has ever brushed up against the symbiotes and who now finds themselves at the top of the list of prey.
Eddie Brock and Venom at the centre of the storm
If there is one character this saga places in the heart of the blaze, it is Eddie Brock. As the first and most famous host of the black symbiote, Eddie embodies on his own everything Knull is trying to harvest. But the stakes are even more intimate and more heartbreaking, because the hunt does not target only him: it also targets his son.
Dylan Brock, the young boy whose existence and symbiotic nature Eddie discovers, becomes one of Carnage's most valuable targets. Protecting this child while waging war against Knull's avatar puts Eddie in a fatherly dilemma of rare intensity. The hero Venom has become must now fight not only for his own survival, but for that of his bloodline. This family dimension anchors the cosmic horror in a deeply human emotion and gives the arc a resonance that reaches well beyond a simple festival of gore.
Throughout the event, Eddie Brock carries the story on his shoulders. His tormented relationship with the symbiote, his past as Spider-Man's rival, his laborious redemption: all these narrative threads converge here. To fully grasp the richness of this character and of his tragic bond with the black parasite, you can explore the whole story of the symbiote and its merging with Eddie that haunts every page of this saga.

The forced alliance
Amazing Spider-Man & Venom T-Shirt
The web-slinger and Venom, heroes in spite of themselves against the threat of Carnage. A t-shirt for fans of the great symbiote saga.
Spider-Man, Miles Morales and the coalition of survivors
Of course, no event of this scale in the web-slinger's universe could do without Spider-Man himself. Peter Parker, as a historic host of the symbiote, naturally figures among the targets. His presence is all the more crucial because he knows the nature of these creatures and the dangers they pose better than anyone. Alongside Venom, he becomes one of the pillars of the resistance against the scarlet butcher.
Young Miles Morales joins the fight too, bringing his energy and his drive to a battle where every ally counts. The hunt extends to many characters connected in one way or another to the symbiotes, forming a motley coalition of heroes and even former villains, all united by the same existential threat. This forced alliance perfectly illustrates the terrifying logic of the codexes: by making every former host a target, Knull mechanically creates an army of desperate defenders who have no choice but to stick together.
Among the figures to protect, young Normie Osborn holds a special place. This child, descended from a sadly famous bloodline in the Spider-Man universe, also becomes a key objective that the heroes must keep out of Carnage's claws. Protecting the most vulnerable, Dylan and Normie above all, gives the coalition a purpose that goes beyond simple individual survival: it is about preserving the future against a god who wants only to swallow the world in darkness.
The galaxy of symbiotes mobilised
One of the great riches of Absolute Carnage lies in the way the event summons the whole symbiotic mythology built up over decades. The hunt for the codexes offers an ideal narrative pretext for bringing together an impressive gallery of creatures linked to the black symbiote. Among them you will find entities as striking as Toxin, Carnage's own offspring, or Anti-Venom, that white, purifying version of the symbiote whose particular powers prove decisive against the contamination.
The saga also revives the memory of creatures born from the Life Foundation's experiments, such as the brutal Riot or the frightening Hybrid, the symbiote born from the fusion of several entities. To these figures are added Carnage's usual travelling companions, such as the technological symbiote Scorn and his deranged accomplice Shriek, whose presence recalls the darkest hours of Cletus Kasady's criminal past.
This massive mobilisation turns the event into a genuine celebration of symbiote lore, where every creature finds its place on the great chessboard of the war against Knull. Readers keen to map out this sprawling universe can also turn to the Venom & symbiotes hub, which brings together the many branches of this dark mythology.
A gory legacy: the signature of the Cates era
Absolute Carnage did not come out of nowhere. The event follows directly on from the work Donny Cates carried out on the Venom series, where he had gradually reinvented the whole mythology of the symbiotes. By introducing Knull and revealing the divine origins of the black parasites, Cates had laid the foundations of a far vaster story. Absolute Carnage is its spectacular culmination, the moment when all the seeds sown finally bloom in a deluge of blood.
Visually, the arc bears the indelible mark of Ryan Stegman, whose nervous, angular line matches the violence of the subject perfectly. The pages overflow with organic detail, fangs, tentacles and sprays of gore. This is a comic that fully embraces its horror nature, one that flinches at no disturbing image when it comes to conveying the terror the scarlet butcher inspires. This radical aesthetic helped make the event stand apart within Marvel's output at the time.
Beyond the visual shock, a whole thematic project unfolds. Absolute Carnage is a reflection on fear, on blood as the raw material of horror, and on the idea of a divine awakening that threatens to swallow all light. The saga draws on the codes of the horror film as much as on those of the superhero, creating an explosive blend that left a deep impression on readers.

Carnage versus Venom
Carnage & Venom PS5 Cover
The legendary face-off on your console: dress your PS5 in the colours of the two most famous symbiotes in the Spider-Man universe.
In the line of the great Carnage crossovers
To place Absolute Carnage properly, it helps to set it back within the long tradition of events centred on the scarlet killer. The character had already been at the heart of sagas that stayed in readers' memories, starting with the legendary Maximum Carnage of the 1990s, a crossover of unprecedented brutality for its time that had already brought a coalition of heroes together against Cletus and his accomplices. To some extent, Absolute Carnage takes up its basic structure while raising it to an unprecedented cosmic scale.
You might also think of Planet of the Symbiotes, that other great story which explored the idea of a large-scale symbiote invasion. These earlier events had prepared the ground by getting readers used to seeing the symbiotes as a collective threat rather than as isolated antagonists. Absolute Carnage builds on that legacy while giving it fresh meaning through the figure of Knull.
This lineage even extends beyond the main continuity. The richness of the symbiote concept has produced countless variations, and enthusiasts will enjoy exploring the alternative versions of Venom that populate the Spider-Man multiverse. Carnage and his dark god thus take their place in a teeming mythology whose outlines each new saga enriches.
The prelude to King in Black
While Absolute Carnage marks the peak of the threat embodied by the scarlet butcher, it is in reality only one stage in a far wider narrative plan. The event works as a direct prelude to King in Black, the later saga in which Knull himself finally descends on Earth at the head of a colossal army of symbiotes. Everything that plays out in Absolute Carnage, all that frenzied harvesting of codexes, sets the stage for that final confrontation with the god in person.
This long-term construction shows the ambition of Donny Cates, who did not conceive his stories as isolated tales but as the chapters of a great symbiotic epic. Absolute Carnage sets up the stakes, raises the threat level and conditions readers to understand that the true apocalypse is still to come. The scarlet butcher, as terrifying as he is, turns out to be nothing more than the messenger of a far greater horror.
For fans of the web-slinger's universe, this chain of events offers an ideal way into the whole pantheon of antagonists. You can also place Carnage back within the great gallery of Spider-Man's enemies, where he holds pride of place among the most dangerous figures Peter Parker has ever faced.
Why Absolute Carnage remains an essential saga
With hindsight, Absolute Carnage stands out as one of the most significant events of the decade for the Spider-Man and symbiote universe. It managed to deeply renew a character many saw as a mere scarlet psychopath, giving him an unexpected mythological and cosmic dimension. By making Carnage the avatar of a god, Donny Cates turned a serial killer into the prophet of an apocalypse, raising the stakes considerably.
The arc also shines through its ability to bring a whole mythology together. By gathering so many characters linked to the symbiotes, it offers a fascinating panorama of this sprawling universe while telling a coherent and visceral story. The family stakes carried by Eddie and Dylan Brock bring an emotional warmth that counterbalances the coldness of the slaughter, giving the whole a depth you would not necessarily expect from such a gory event.
For anyone who wants to plunge into the magnificent horror of symbiote mythology, Absolute Carnage is essential reading, a high point of darkness and ambition. And to extend the experience, there is nothing like browsing the Venom & symbiotes collection, which brings together the universe of these fascinating creatures for everyone the darkness of the symbiote keeps drawing in.
Frequently asked questions about Absolute Carnage
Who are the creators of Absolute Carnage?
Absolute Carnage is the work of writer Donny Cates and artist Ryan Stegman, published by Marvel in 2019. This creative duo had already collaborated on the Venom series, where they laid the groundwork for the whole new symbiote mythology. Absolute Carnage represents the spectacular culmination of their joint work, an event where Cates's ambitious script meets Stegman's visceral, nervous line to produce one of the most striking comics of their era.
What exactly is a codex?
A codex is a copy of the genetic code of the symbiote god Knull, etched into the spinal cord of anyone who has ever been bonded to a symbiote. Even after the symbiote departs, this imprint remains, like an invisible scar written into the spine. These codexes are precisely what Knull needs in order to wake, which is why Carnage hunts down and devours every former host to harvest these precious fragments and hasten his god's awakening.
Why does Carnage become so powerful in this saga?
In Absolute Carnage, Cletus Kasady no longer fights for himself but as the avatar of Knull, the god of the symbiotes. Invested with that divine power and fed by the codexes he devours, he becomes an almost invincible force, able to turn entire crowds into symbiotic creatures dubbed the 'Carnage-ized'. This enhanced version of the scarlet killer, marked by black patterns on his red skin, far surpasses the classic Carnage and represents a threat of unprecedented scale for every hero in the Marvel universe.
Should you read Absolute Carnage before King in Black?
Yes, Absolute Carnage works as a direct prelude to King in Black, the saga in which Knull himself descends on Earth at the head of an army of symbiotes. Understanding the stakes of Absolute Carnage, in particular the harvesting of the codexes and the nature of the dark god, lets you fully appreciate the final confrontation that follows. Reading these two events in order gives a coherent and progressive experience, where the threat builds all the way to its apocalyptic climax.
