Terra Formars Manga Volumes: How All 23 Books Are Structured
The series is written by Yu Sasuga and illustrated by Ken-ichi Tachibana. It began as a serialized manga — meaning it was published chapter by chapter in a magazine before those chapters were collected into book-format volumes. It originally ran in Shueisha’s Miracle Jump magazine before moving to Weekly Young Jump, both published by Shueisha, one of Japan’s largest manga publishers. The first collected volume hit shelves in Japan in April 2012. VIZ Media, a major North American manga publisher, handles the English-language edition.
The premise is straightforward and unsettling: centuries ago, humanity sent cockroaches and mold to Mars as part of a terraforming project — an effort to gradually make the planet’s environment habitable for humans. When a manned mission finally arrives, they discover the roaches have evolved into massive, intelligent humanoid creatures, and they are terrifyingly hostile. To fight back, crew members undergo surgical procedures that graft insect and animal DNA onto their bodies, giving them transformation-based combat abilities. It’s body horror meets survival horror meets science fiction, and the series wastes no time establishing that nobody is safe.
Across its 23 volumes, Terra Formars moves through several distinct story arcs, escalating from a contained Mars survival nightmare into a sprawling conspiracy thriller. One important thing to know going in: the series is ongoing. It has gone through extended hiatuses over the years — sometimes frustratingly long ones — but serialization has resumed. Volume 23 released in Japan in July 2024, so the story continues.
Volume Breakdown by Story Arc
Terra Formars tells a continuous, arc-driven story. Here’s a spoiler-light overview of how the 23 volumes break down narratively, so you know what you’re getting into — and how much each section will cost you — without ruining any of the major beats.
Early Arc — The First Mars Mission (Volumes 1–4)
The opening volumes throw you straight into the horror. A crew arrives on Mars expecting a routine mission and instead encounters the Terraformars — evolved cockroaches that are faster, stronger, and far more organized than anyone anticipated. These early chapters establish the series’ signature tone: brutal, shocking, and relentless.
This is also where you learn how the power system works. Each crew member has been surgically enhanced with traits from a specific insect or animal species. When they activate their abilities, they physically transform — sometimes grotesquely — gaining the combat characteristics of their base organism. A character with bombardier beetle DNA can generate explosive chemical reactions. Someone with the traits of a bullet ant hits with proportional force. It’s a clever system that the series uses to generate wildly varied fight sequences.
The body count in these opening volumes is high. Terra Formars establishes early that it will kill major characters without warning, and the deaths are rarely clean. If you’re coming to this series for horror, these volumes deliver immediately.
The Main Mission Arc (Volumes 5–17)
The largest chunk of the series covers the Annex I mission — a much bigger, internationally organized expedition to Mars with a dramatically expanded cast. Where the early arc was a small-squad horror story, this section becomes something closer to a battle manga — a combat-focused style of storytelling where fights drive the plot — layered with horror elements. Multiple national teams, each with their own enhanced fighters and secret agendas, deploy to the planet surface.
This is where Terra Formars hits its stride in terms of scale. You get dozens of new characters, each with unique insect or animal abilities, and the manga cycles through squad-based battles, ambushes, last stands, and betrayals. The Terraformars themselves evolve too — they start demonstrating tactical intelligence, using weapons, and even developing their own versions of the insect-based powers. The horror escalates because the enemy keeps getting smarter.
The middle volumes are dense with action and lore. Sasuga uses the multi-national cast to explore different fighting styles and biological abilities, and Tachibana’s artwork goes all-in on both the transformation sequences and the visceral combat — with detailed, dynamic panels that make the body horror and action sequences hit hard even for readers who are new to manga. These are the volumes where most readers either become fully invested in the series or decide the intensity isn’t for them.
Later Volumes — Shifting Battlegrounds (Volumes 18–23)
The later portion of the series shifts the conflict in significant ways. Without spoiling specifics, the story expands beyond Mars. Political conspiracies that were hinted at in earlier volumes come to the foreground, and the question of who the real enemy is becomes murkier. The survival horror elements remain, but they’re now layered with thriller and espionage elements.
These volumes lead into the current ongoing story. The tone becomes more complex — the straightforward “humans vs. cockroaches” premise gives way to factional infighting, hidden agendas among world governments, and revelations about the true nature of the terraforming project. It’s a natural evolution for a long-running series, though some readers prefer the more focused horror of the earlier arcs.
Which Edition Should You Buy?
VIZ Media publishes Terra Formars as standard single volumes in English. All 23 volumes are available, and this is currently the only English-language edition format. There are no confirmed omnibus editions (collected books that bundle multiple volumes into one), deluxe hardcovers, or box sets for this series in English at the time of writing.
Each volume is a standard manga paperback — the typical size you’d find on any manga shelf. They read right to left in the original Japanese format. If you’ve never read manga before, this means you open the book from what Western readers would consider the “back” cover, and you read panels from right to left across each page. It feels unusual for a page or two, but most readers adjust quickly.
Digital editions are also available if you prefer reading on a screen. You can find them through VIZ’s own platform, Kindle, Apple Books, and Kobo. Digital is a solid option here, especially if you want to binge through the series without storing 23 physical books.
If you’re starting fresh, picking up Volume 1 in either format is the way to go. The series must be read in order — it follows a continuous narrative with escalating stakes, and jumping in at a random volume would be genuinely confusing.
For collectors building a physical set, the good news is that all 23 volumes are in print and readily available from major retailers. You won’t need to hunt down out-of-print editions or pay aftermarket prices.
Key Volumes Where the Horror Peaks
Terra Formars is consistently intense, but certain stretches of the series stand out for readers who are specifically here for the horror.
The opening volumes are essential. The first encounter with the Terraformars is designed to be shocking, and the manga succeeds at making you feel the crew’s terror. The body-horror transformations are at their most unsettling when they’re still new — you don’t yet know what to expect, and the art takes full advantage of that. If the first two or three volumes don’t hook you, the series probably isn’t your thing, and that’s a fair and efficient test.
The middle arc volumes deliver the most sustained horror intensity. This is where the squad battles happen — multi-chapter engagements where enhanced humans fight waves of Terraformars in desperate, bloody encounters. Character deaths come frequently and violently. The horror isn’t just in the monsters; it’s in watching characters you’ve gotten attached to get overwhelmed. The Terraformars demonstrating stolen abilities for the first time is a devastating moment that the series executes brilliantly.
The recommended approach is simple: start at Volume 1 and read straight through. The horror in Terra Formars is cumulative. Early volumes establish what the Terraformars can do. Middle volumes escalate by showing them adapting. Later volumes recontextualize the threat entirely. Skipping around would rob you of the building dread that makes the series effective.
The latest English volume — Volume 23 — is the most recent entry point into where the story currently stands.
Terra Formars
Where to Buy Terra Formars in English
VIZ Media is the sole English-language publisher for Terra Formars, so any legitimate English edition will be a VIZ release.
Physical copies are available through:
- Amazon
- Barnes & Noble
- Books-A-Million
- Local comic shops and independent bookstores (check availability — not all will stock every volume)
- Specialty manga retailers
Digital copies are available through:
- VIZ.com
- Kindle
- Apple Books
- Kobo
- Google Play Books
For a 23-volume series, the cost of collecting the full set adds up. One practical approach is to start with the first few volumes to make sure the series clicks for you before committing to the whole run. If you end up loving it, keep an eye out for digital sales on platforms like Kindle and Kobo — these storefronts periodically discount manga volumes or offer bundle pricing, which can bring down the per-volume cost over time.
Since there’s no box set available, buying individual volumes is your only option — but they’re all in print and widely stocked, so availability shouldn’t be an issue.
A Note on Controversy
It’s worth mentioning that Terra Formars has drawn criticism for the visual design of the Terraformars themselves — specifically, some readers and critics have pointed out that the humanoid cockroach designs echo racially charged caricatures. This is a well-documented point of controversy around the series. Whether it affects your decision to read is personal, but you should be aware of it going in so you can make an informed choice.
Frequently Asked Questions
How many volumes of Terra Formars are there?
23 volumes in both the Japanese and English editions. The English version is published by VIZ Media, and all 23 volumes are currently available.
Is Terra Formars finished?
No. Terra Formars is an ongoing series. It has gone through multiple extended hiatuses over the years, which has understandably confused readers about its status. However, serialization has resumed, and Volume 23 released in Japan in July 2024. Whether future hiatuses will occur is anyone’s guess — the series has a pattern of stopping and starting — but it is not officially completed or cancelled.
Is there a Terra Formars anime?
Yes, there is an anime adaptation of Terra Formars. It covers portions of the manga’s story, though the adaptation received a mixed reception compared to the source material. If you enjoy the manga, the anime is worth checking out for the animated action sequences, but many fans consider the manga the stronger experience — particularly because the anime’s original broadcast version censored much of the violence that defines the series. An uncensored version does exist, so if you seek out the anime, look for the uncut or uncensored release for the full experience.
Do I need to read Terra Formars in order?
Yes, absolutely. Terra Formars follows a continuous narrative. Characters, abilities, plot threads, and the evolving nature of the Terraformars all build on what came before. Jumping into a random volume mid-series would be confusing and would spoil major deaths and reveals from earlier arcs. Start with Volume 1.
Is Terra Formars appropriate for younger readers?
No. Terra Formars contains extreme violence, graphic body horror, disturbing imagery, and mature themes throughout. The transformations are often grotesque, character deaths are visceral, and the series does not shy away from showing the consequences of its brutality. It’s published under the Young Jump Comics label — a Shueisha imprint (a branded subdivision of the publisher) that targets an older male audience in Japan, similar to how Western publishers use age-rating labels to signal intended readership. VIZ Media rates the English edition for mature readers. This is not a series for kids or younger teens — it’s aimed squarely at adult manga readers who are comfortable with intense horror content.