Otomo, Katsuhiro

Nagayasu, Takumi

Orbiting serenely above a long-ago poisoned earth, the last bastion of human civilization is the space colonies. After a terrorist attack, the colonists are forced into exile on the blighted planet below. In the confusion, a young mother is separated from her family and is flung into a bleak, uncertain future... But Sarah will not rest until she finds her children.

(Source: ANN)

Sarah: The Legend of Mother Sarah

The Legend of Mother Sarah

沙流羅 -The Legend of Mother Sarah-

Matsumoto, Leiji

In the future, humanity has achieved a vast starfaring civilization, but is slowly and steadily succumbing to ennui or despair, often due to defeat and subjugation by a foreign invader. Rising against the general apathy, Herlock denies defeat and leads an outlaw crew aboard his starship Arcadia to undertake daring raids against Earth's oppressors. Their primary oppressors are the Mazone, a race of organic plant-based alien women who explored Earth in the mythic past and are now back to reclaim it.

(Source: Wikipedia)

Uchuu Kaizoku Captain Herlock

Captain Harlock

宇宙海賊キャプテンハーロック

Takayama, Kazumasa

A decaying, old satellite is headed straight for Tokyo, and the city is three citizens shy of total evacuation. Hard-boiled detective Watanabe remains in the abandoned gotham, searching for a gaunt, desperate Machida, who is wanted for attempted murder; and Chiaki, a stubborn housewife who doesn't believe the burning rubble will hit Tokyo, also remains behind. But Chiaki is wrong. And when the satellite does hit, the three find the city is less abandoned than before. Someone was riding that satellite down from orbit, and that someone wasn't born on earth!

(Source: Dark Horse)

Denmu Jikuu

Chronowar

電夢時空

Yamada, Akihiro

On the outskirts of Neo-Hong Kong lies a mysterious Chinese-style garden. Legend has it that anyone who looks upon the fairy of the garden will die before the night is out.

Five years ago, Douglas Pyke was charged with discovering the true nature of this fairy, but when he accidentally killed a woman in the line of duty, he left the police force forever. Now, a cabbie and sometime private eye, he is asked to find a missing scientist and confront the mysteries of the garden once more.

Hyakka Teien no Higeki

Full Flower Garden; Tragedy of the Garden of Many Flowers

百花庭園の悲劇

Tanaka, Yoshiki

Katou, Naoyuki

Kamoshita, Yukihisa

In the far future, two young military leaders rise above their peers. The invincible genius Reinhard von Lohengramm is matched only by the unbeatable magician Yang Wen-li; though the two share a profound respect for each other, they meet on the battlefield not as comrades but as bitter adversaries. Commanding thousands of warships and millions of soldiers, they lead giant space fleets into battle on behalf of the two interstellar states that have wrested for control of the Milky Way for over a century and a half. 

The Galactic Empire, an absolute monarchy ruled by Kaiser Friedrich von Goldenbaum IV and an entrenched nobility, seeks to suppress the rebels daring to oppose the inviolable crown. The Free Planets Alliance, a representative democracy led by a corrupt High Council, degenerates as its elected leaders⁠ use war and conflict as a way to win popular support. Reinhard is a minor noble who became a High Admiral through his strategic brilliance and his sister's position as the favored concubine of the Kaiser, while Yang is an avid historian and reluctant commodore hailed as a hero despite only using his tactical prowess to navigate around his leaders' incompetence. On opposite sides of the galaxy, the two men have wildly different visions for the future: Reinhard dreams of uniting mankind under his iron fist, while Yang wants only to carve a path to lasting peace. As the war rages on, Reinhard and Yang each strive for their ideals and secure their place among the stars as the leaders of a new era of galactic heroes.

[Written by MAL Rewrite]

Ginga Eiyuu Densetsu

Legend of the Galactic Heroes

銀河英雄伝説

Hara, Tetsuo

Buronson

One day, a wanderer appears out of the wasteland to bring justice to the guilty and hope to the people—a warrior named Ken, a man who bears seven scars upon his chest and holds the secret of a mysterious martial art known as Hokuto Shinken, the Divine Fist of the North Star!

(Source: VIZ Media)

Hokuto no Ken

Fist of the North Star

北斗の拳

Nagai, Go

Soft-hearted Akira Fudou has always been somewhat of a pushover. When he reunites with his childhood friend, Ryou Asuka, in a fateful encounter, Ryou reveals to him the terrifying reality of his father's research: demons exist and are planning to claim possession of the earth once again.

Eager to help his friend save humanity, Akira agrees to attend Black Sabbath, a party filled with depravity and corruption, to attempt to merge with a demon. A near-death encounter causes him to unify with Amon, a demon feared amongst even his own kind. Together they form Devilman, a combination of Amon's strength and Akira's pure heart.

After uniting with Amon, Akira begins to fight against the demons with his newfound power, desperate to stop the downfall of all human civilization.

[Written by MAL Rewrite]

Devilman

デビルマン

Yuuki, Masami

In the near future, large mecha called Labors are made to assist in various reconstruction projects in major countries around the world that are being threatened by global warming. In Japan, the government has enacted Project Babylon in order to conduct land reclamation. Labors are also being pressed into police and military service aside from civilian use.

However, terrorists are now attempting to use labors to make themselves heard, as well as common criminals, thugs and guerrillas. The National Police Agency established the Special Vehicles Division, an all-labor task force to combat the potential use of labors for criminal/terrorist activities.

(Source: MU)

Kidou Keisatsu Patlabor

Mobile Police Patlabor

機動警察パトレイバー

Adachi, Mitsuru

The story is set in a place very similar in appearance to Earth in the Edo period. However, Adachi (the mangaka) regularly reminds the reader all throughout the series that the setting is another planet in the distant future which just happens to look like Earth.

After the death of his mother, Shichimi sets out to join his step-brothers and -sister who live together in Karakuri Tenement, a place provided by the father they have never met. He finds out that each of them had different mothers (all of whom have died), but were fathered by the same man. Not long after Shichimi's arrival, the siblings decide to journey to visit the graves of each of their mothers. On this journey, they encounter many dangers.

(Source: Wikipedia)

Nijiiro Tougarashi

虹色とうがらし

Itsuki, Natsumi

Twin Brothers Thor and Rai, the sons of murder parents are sent to prison star Kimera. What was waiting for them is a planet where meat eating plants rules and society is in four different colony based on skin color. Will the boys survive in these harsh conditions!? 

(Source: MU)

Includes a two-part short called "Death Game".

Juu Ou Sei

Jyu-Oh-Sei

獣王星

Michihara, Katsumi

Faithful to the novels aside for some changes that may be considered major e.g. characters changed from male to female.

Asamiya, Kia

In the 21st century, just when the human race needs new heroes, the Lucifer Hawks enter Earth's dimension. The members of the A.M.P., six young women with incredible powers, are set to defend the human race against these monstrous entities from another world.

(Source: VIZ Media)

Manga Like Kaze no Na wa Amnesia

Sarah: The Legend of Mother Sarah

Uchuu Kaizoku Captain Herlock

Denmu Jikuu

Hyakka Teien no Higeki

Ginga Eiyuu Densetsu

Hokuto no Ken

Devilman

Kidou Keisatsu Patlabor

Nijiiro Tougarashi

Juu Ou Sei

Ginga Eiyuu Densetsu

Silent Möbius