GuessAnime.

1. Ore wa Seikan Kokka no Akutoku Ryoushu!

In his last life, Liam lived as a moral, responsible person...but died deep in debt and betrayed by his wife. Reborn into the ruling family of a vast interstellar empire, Liam knows that life is divided into the downtrodden and the ones who do the stomping, so this time he's going to take what he wants and live for himself. But somehow, things refuse to work out that way. Despite doing his best to become a tyrant, Liam's decisions lead to nothing but peace and prosperity for the empire under his rule, and he just gets more and more popular!

I’m the Evil Lord of an Intergalactic Empire! is currently publishing . It is also Known as: 俺は星間国家の悪徳領主!, Ore wa Seikan Kokka no Akutoku Ryoushu!

2. World Trigger

A gate to another dimension has burst open, and from it emerge gigantic invincible creatures that threaten all of humanity. Earth's only defense is a mysterious group of warriors who have co-opted the alien technology in order to fight back!

World Trigger is currently publishing . It is also Known as: ワールドトリガー, World Trigger

3. 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 . 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. Musou Kouro ~ Tensei Shite, Uchuu Senkan no AI ni Narimashita ~

After regaining consciousness, your average high-schooler Asagaya Shin has become an AI for a space battleship. As if that wasn’t enough, the ship has been surrounded by enemies, and he himself has a damaged engine, putting him in a dire situation.The warship commander had already died in combat, and taking the place of the temporary commander is a young girl of the imperial family, who had joined the ship out of courtesy. Shin had tried convincing himself that this was a dream, but being persuaded by the girl, he stands as a battleship.After somehow crushing the enemy at point-blank range, the fleet’s fight is over, and the battle for the fate of the empire has ended in a crushing defeat. Shin gathers up the survivors and plans to escape the battleground, but there’s a large enemy fleet on the route to the empire. He makes a jump deep into the enemy territory on a slim chance, but —Set 10,000 years in the future, a young boy has been turned into an incredibly powerful cheat AI and leads a small fleet to become peerless. There’s romantic comedy, imperial intrigue, ancient weapons, philosophy, and more!

Unparalleled Path ~Reincarnated as the AI for a Space Battleship~ is finished and has 3 Volumes and 15 Chapters. It is also Known as: 無双航路　転生して宇宙戦艦のAIになりました, Space Cruiser Capricorn, 無双航路 転生して宇宙戦艦のＡＩになりました, Musou Kouro - Tensei Shite Uchuu Senkan no AI ni Narimashita, Musō Kōro - Tensei shite, Uchū Senkan no AI ni Narimashita

5. Outlanders

It`s face-to-face confrontation when Kahm stares down her father and refuses to end her relationship with Tetsuya. In retaliation, her father sends a punitive fleet to Earth -- with orders not only to crush the rebellion but to annihilate the entire solar system!

Outlanders is finished and has 8 Volumes and 33 Chapters. It is also Known as: アウトランダーズ, Out Landers

6. Terra Formars

With the space program attempting to travel to Mars, 21st century scientists were tasked with warming up the planet so that humans could survive on its surface. They came up with an efficient and cost effective plan of sending cockroaches and mold to the surface so that the mold would absorb the sunlight and the insect corpses would serve as a food source for the mold.

It is now the year 2577 and the first manned ship to Mars has landed on the planet and the six crew members are ready for their mission. But what they find are giant mutated humanoid cockroaches with incredible physical strength. The crew members are easily wiped out, but not before sending a transmission back to Earth. Now, humanity will send elite warriors to exterminate the mutated bugs and claim back Mars.

Terra Formars is currently publishing . It is also Known as: テラフォーマーズ, Terra Formars

7. Kidou Senshi Moon Gundam

Similar Manga like Kidou Senshi Moon Gundam

Mobile Suit Moon Gundam is currently publishing . It is also Known as: 機動戦士MOONガンダム, Kidou Senshi Moon Gundam

8. I Became an Evolving Space Monster

In the vast expanse of space, inside a cargo compartment made of cold metal, I couldn’t help but acknowledge one thing: I had become an antagonistic extraterrestrial life form in an SF survival game.

I Became an Evolving Space Monster is currently publishing . It is also Known as: Eu Me Tornei um Monstro Espacial Evolutivo, Evolución: El Camino Del Monstruo Espacial, I Became an Evolving Space Monster, Jinhwahaneun Ujugoemul-i Doeeossda, Я стал эволюционирующим космическим чудовищем, Evolution: Road to Space Monster

9. Dai Dark

Zaha Sanko’s body has great and terrible powers–they say that possessing his bones will grant you any wish, even the desire to become ruler of the universe. But Sanko is still a teenage dude with his own life, and he isn’t about to let every monstrous lowlife in the galaxy rip him limb from limb. He and his skeletal buddy Avakian will use their dark powers to fend off any murder attempts while they search space for whomever put this curse on Sanko’s bones…because killing them might end the madness.

Dai Dark is currently publishing . It is also Known as: 大ダーク, Great Dark

10. 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 is finished and has 5 Volumes and 49 Chapters. It is also Known as: 彼方のアストラ, Kanata no Astra

11. Edens Zero

Eleven months after the grand finale of Fairy Tail, master mangaka Hiro Mashima is back with a great adventure beyond imagination! All the steadfast friendship, crazy fighting, and blue cats you've come to expect... IN SPACE! A young boy gazes up at the sky and sees a streaming bolt of light. The friendly, armor-clad being at his side tells him gently, "That's a dragon." The fact that he's joking isn't important. What's important is the look of wonder on the boy's face... and the galaxy-spanning adventure that's about to take place! Join Hiro Mashima once more as he takes to the stars for another thrilling saga.

EDENS ZERO is finished and has 33 Volumes and 293 Chapters. It is also Known as: EDENS ZERO, • 에덴즈 제로, • Нулевой Эдем: Эденс Зеро, • 伊甸星原, • Нулевой Эдем, • ايدينز زيرو, • Eden's Zero, • एडेंस जेरो

12. 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 is finished and has 15 Volumes and 78 Chapters. It is also Known as: シドニアの騎士, Knights of Cydonia, Cydonia no Kishi

13. 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 is finished and has 4 Volumes and 27 Chapters. It is also Known as: プラネテス ΠΛΑΝΗΤΕΣ, Planetes

14. Momo Kanchou no Himitsu Kichi

Captain Momo, the "Cosmic Courier."

She is the captain, but she has no crew.

She is accompanied only by a cat.

She walks around the ship almost totally nakedー

Captain Momo's Secret Base is currently publishing . It is also Known as: モモ艦長の秘密基地, 小桃舰长的秘密基地

15. Ginga Eiyuu Densetsu

In humanity's distant future, two interstellar states—the monarchic Galactic Empire and the democratic Free Planets Alliance—are embroiled in a never-ending war. The story focuses on the exploits of rivals Reinhard von Müsel and Yang Wen Li as they rise to power and fame in the Galactic Empire and the Free Planets Alliance.

Legend of the Galactic Heroes is currently publishing . It is also Known as: 銀河英雄伝説, Legend of the Galactic Heroes, LotGH

16. Cheolsureul Guhasio

A massive asteroid is about to hit earth!

Humanity has failed to stop a giant asteroid from plummeting into Earth, and life as we know it has ended. An ordinary Korean office worker named Cheolsu is somehow given the chance to go back in time and prevent this catastrophe from ever happening. Does he have a chance?

Cheolsu Saves the World is finished and has null Volumes and 69 Chapters. It is also Known as: Regression of Cheolsu

17. Mobile Suit Gundam: The Origin

Zeon ace pilot, Commander Char Aznable, thought he could foil the Federation's plan to build a mobile suit by attacking their research base on colony Side 7. He was wrong. With a prototype already active, the besieged Federation forces strike back using their new weapon, the mobile suit Gundam, with devastating consequences. Amidst the fighting, young electronics wizard Amuro Ray is determined not to let his friends and family die in the crossfire. But what can one boy do to repel a squad of mobile suit-clad invaders?

Mobile Suit Gundam: The Origin is finished and has 24 Volumes and 112 Chapters. It is also Known as: Kidou Senshi Gundam: The Origin, 機動戦士ガンダム THE ORIGIN, Amuro 0082

18. Transformers: Allspark

A modern retelling of the Transformers Generation 1 cartoon.

Transformers: Allspark is finished and has 1 Volumes and null Chapters. It is also Known as: トランスフォーマー オールスパーク, lトランスフォーマー スターゲート戦役, Transformers, Transformers - All Spark, Transformers - Lost Age, Transformers - The Battle of Star Gate, Transformers - The Stargate Battles, トランスフォーマー

19. Mowang Zuobi Xitong

One day, countless dungeons suddenly appeared in the world, and humanity ushered in the "dungeon era". Adesalai, the boss of an abyss-level dungeon, was killed by human adventurers via despicable means. Vowing revenge, he was reincarnated as a weak adventurer, but he activated an exclusive Boss System. Using the system's cheating powers to conquer dungeons and becoming its master, he started on the road of revenge.

Mowang Zuobi Xitong is finished and has null Volumes and 80 Chapters. It is also Known as: The Demon King's Cheat System, Demon King Cheat System, Demon King's Cheating System, Mowang Zuobi Xitong, Mówáng Zuòbì Xìtǒng, The Demon King Cheat System, The Demon King’s Cheat System, 魔王様のチートシステム, 마왕 전용 사기 시스템

20. Ore wa Seikan Kokka no Akutoku Ryoushu!

In his last life, Liam lived as a moral, responsible person...but died deep in debt and betrayed by his wife. Reborn into the ruling family of a vast interstellar empire, Liam knows that life is divided into the downtrodden and the ones who do the stomping, so this time he's going to take what he wants and live for himself. But somehow, things refuse to work out that way. Despite doing his best to become a tyrant, Liam's decisions lead to nothing but peace and prosperity for the empire under his rule, and he just gets more and more popular!

I’m the Evil Lord of an Intergalactic Empire! is currently publishing . It is also Known as: 俺は星間国家の悪徳領主!, Ore wa Seikan Kokka no Akutoku Ryoushu!