In the depth of galaxy, the Leviathan, a huge spaceship, floats adrift. When wreckstrippers get isnide, they find a diary of a schoolboy, Kazuma, relating the events that happenned in the guts of the ship... While reading it something seems obvious : a survivor from the disaster is hiding somewhere in the maze of the ruins !
Years before, the young Kazuma was in a middle of a schooltrip to Earth. The party comes to an end when unknown explosions destroy a part of the hull of the vessel ! Now the passengers are trapped in the middle of nowhere... The teenager and his friend Fubata then assist to a conversation between their teacher and a maintenance robot : the supplies in oxygen is not enough to make it until help arrives... The only hope for survival is a cryogenic chamber in the heart of the metal giant. However, it wan only contain one person... Unfortunately for the students, the teacher quickly understands that he has been heard. It is the beginning of a bloody fight to keep the secret !
Leviathan has finished publishing and it has 15 Chapters. It is also Known as: リバイアサン, Leviathan (KUROI Shiro)
Genres: Science Fiction , Space , Horror , Thriller , Drama , Seinen , Shipboard
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Top 5 Manga Like Leviathan [2025 List]
5. Mezametara Saikyou Soubi to Uchuusen-mochi Datta no de, Ikkodate Mezashite Youhei Toshite Jiyuu ni Ikitai
When I woke up, I found myself inside a spaceship.
I guess you guys think I’m talking nonsense here, but I also have absolutely no clue about what exactly happened to me.
I was really close to completely losing it, but fortunately, I managed to notice that this place was really similar to the world featured in a game I was playing recently.
Am I dreaming? Nope, it’s no dream. Maybe I actually got sent to a different world or something?
But didn’t those things usually involve getting sent to a magical world with elves, dwarves, dragons and whatnot?
In any case, I don’t know what caused this, but I guess I’ll just have to suck it up and live properly in this world from now on.
It’ll be okay. I got my trusty spaceship so I can probably make some money. It’ll work out! It has to!
This is the story of a man abruptly thrown into space along with his private spaceship. He runs around with it and saves damsels in distress along the way, flirts with said damsels, earns money as a merc-for-hire and uses his gaming knowledge to work his way into living freely and easily.
When I Woke Up, I Got the Strongest Equipment and a Starship, so I Went and Became a Mercenary in Order to Live as I Please while Aiming for a Detached House is currently publishing and has Chapters. It is also Known as: 目覚めたら最強装備と宇宙船持ちだったので、一戸建て目指して傭兵として自由に生きたい, Я очнулся, будучи пилотом сильнейшего космического корабля, а потому решил стать межгалактическим наёмником, When I Woke Up, I Got the Strongest Equipment and a Spaceship, so I Went and Became a Mercenary in Order to Live as I Please while Aiming for a Detached House, Reborn as a Space Mercenary: I Woke Up Piloting the Strongest Starship!
4. Kanata no Astra
What starts as a pleasant class trip to a planet five light-years away becomes a nightmare survival trip to get back home.
In the year 2063, interstellar space travel has become the norm. What sort of adventure awaits on the new frontier?
It's the first day of Planet Camp, and Aries Spring couldn't be more excited! She, along with eight other strangers, leave for Planet McPa for a weeklong excursion. Soon after they arrive, however, a mysterious orb appears and transports them into the depths of space, where they find an empty floating spaceship…
Astra Lost in Space has finished publishing and it has 49 Chapters. It is also Known as: 彼方のアストラ, Kanata no Astra
3. Uchuu Kyoudai
One night in 2006, when they were young, the two brothers Mutta (born 1993) and Hibito (born 1996) saw what appeared to be a UFO heading for the moon. They decided that night to both become astronauts and travel out into space.
In 2025, Hibito has become an astronaut, and he's going to go to the moon. Mutta ended up following a more traditional career path with an auto development company; however, Mutta just ruined his career through a violent altercation with his boss. Now, not only has he lost his job, he appears to be blacklisted in the entire industry. Maybe this is a rare opportunity for Mutta to once again chase his childhood dream and become an astronaut like his little brother!
Space Brothers is currently publishing and has Chapters. It is also Known as: 宇宙兄弟, Uchu Kyodai
2. Sidonia no Kishi
Outer space, the far future.
A lone seed ship, the Sidonia, plies the void, ten centuries since the obliteration of the solar system. The massive, nearly indestructible, yet barely sentient alien life forms that destroyed humanity’s home world continue to pose an existential threat.
Nagate Tanikaze has only known life in the vessel’s bowels deep below the sparkling strata where humans have achieved photosynthesis and new genders. Not long after he emerges from the Underground, however, the youth is bequeathed a treasured legacy by the spaceship’s coolheaded female captain.
Meticulously drawn, peppered with clipped humor, but also unusually attentive to plot and structure for the international cult favorite, Knights of Sidonia may be Tsutomu Nihei’s most accessible work to date even as it hits notes of tragic grandeur as a hopeless struggle for survival unfolds.
Knights of Sidonia has finished publishing and it has 78 Chapters. It is also Known as: シドニアの騎士, Knights of Cydonia, Cydonia no Kishi
1. Planetes
Haunted by a space flight accident that claimed the life of his beloved wife, Yuri finds himself six years later as part of a team of debris cleaners on a vessel called the Toy Box charged with clearing space junk from space flight paths. The team consists of Hachimaki, a hot shot debris-man with a sailor's affinity for the orbital ocean; Fee, a chain-smoking tomboy beauty with an abrasive edge; and Pops, a veteran orbital mechanic whose avuncular presence soothes the stress of the job.
Planetes has finished publishing and it has 27 Chapters. It is also Known as: プラネテス ΠΛΑΝΗΤΕΣ, Planetes
