Shows Like Knights of Sidonia
If you loved Knights of Sidonia's Action & Adventure and Animation storytelling, these series deliver a similar experience — chosen for tone, narrative quality, and viewer satisfaction. Each includes where to stream it now.
★ Top Picks

Gurren Lagann
When a young laborer escapes to the world aboveground, he discovers a violent land in which humans battle robots controlled by a power-hungry noble.

Aldnoah.Zero
In 1972, the Apollo 17 mission discovered a hypergate to Mars on the surface of the moon. Soon a war breaks out between Earth and Mars, and Martian soldiers begin to descend from the sky, riding steel giants, intent on exterminating humanity.

Mazinger Z
Mazinger Z, known briefly as Tranzor Z in the United States, is a Japanese super robot manga series written and illustrated by Go Nagai. The first manga version was serialized in Shueisha's Weekly Shōnen Jump from October 1972 to August 1973, and it later continued in Kodansha TV Magazine from October 1973 to September 1974. It was adapted into an anime television series which aired on Fuji TV from December 1972 to September 1974. A second manga series was released alongside the TV show, this one drawn by Gosaku Ota, which started and ended almost at the same time of the TV show. Mazinger Z has spawned several sequels and spinoff series, among them UFO Robot Grendizer and Mazinkaiser. It was a very popular cartoon in Mexico during the 1980s, where it was dubbed into Spanish directly from the Japanese version, keeping the Japanese character names and broadcasting all 92 episodes, unlike the version aired in the U.S.

Birdy the Mighty: Decode
While pursuing fugitives the Space Federation police officer Birdy Cephon Altera finds herself on Earth.

Valvrave the Liberator
Haruto Tokishima, a high school student, discovers Valvrave, a mysterious and very powerful machine, and after controlling it Haruto becomes immortal.

Synduality Noir
The year is 2242. Kanata wants to be a Drifter and meets Noir, who is a dud Magus with no memories. However, because Noir excels in battle against the Enders, Kanata partners with her and discovers exactly what it takes to be a Drifter.

Star Blazers: Space Battleship Yamato 2199
The year is 2199. The human race has been crushed in their war with the Gamilos, driven into underground cities by the invader's assault. Scientists estimate they have only a year left. The young officers Susumu Kodai and Daisuke Shima receive a mysterious capsule from a ship that made an emergency landing on Mars and return with it to Earth. It contains humanity's last hope: the planet Iscandar on the other side of the Magellan Galaxy has the technology to defeat the Gamilos and restore the planet. The space battleship Yamato is entrusted with this task, but they have only one year before humanity ends.

Gargantia on the Verdurous Planet
While fighting an intense inter-galactic war, a mecha pilot is accidentally warped into a space-time neither he nor his computer recognize. After waking up from a long-time hibernation, he finds himself trapped on a planet, with human residents talking in an unknown form of language, using inferior technologies, and - most shocking to him - naturally breathable air.
More Shows Like Knights of Sidonia

Macross Frontier
A human space colony fleet is trying to find a habitable planet near the center of the Milky Way Galaxy. The story focuses on three young adults and the events that occur around them as the fleet faces a crisis of alien origin.

Mobile Suit Gundam
What would you do if you suddenly found yourself in the middle of a war? Teenager Amuro Ray sees his life shattered when war comes to his home. During the chaos, Amuro finds himself inside the mobile suit Gundam, the Earth Federation's new secret weapon, and he somehow gets it to work. Amuro and the other refugees flee their homeland on the warship White Base. This group of children and inexperienced soldiers will change the outcome of the war.

HEROMAN
An American kid named Joey lives in Center City, USA & has always wanted to become a hero. Unfortunately, he's just an orphan working part-time to support his grandma and himself. After he watched a commercial of a new robot action figure, Joey believe he'll gain strength if he obtains one. The only robot toy he can get his hands on is a broken one that was abandoned by a rich school bully. Feeling pity for the trashed action figure, Joey took it home to repair it. Little did he know, that once he repairs the toy, it'll make his hero dream become a reality.

Galaxy Express 999
In a distant future, Tetsuro is a human boy who wants his body replaced with a robotic one. This is possible, but to do so he has to reach the Immortal Planet onboard the space train Galaxy Express 999. Maetel, a beautiful and mysterious blonde woman dressed in Russian style, joins him in the long journey through space. Every episode sees our heroes arriving in a new planet's space train station.

Blue Gender
In the 2030s Earth has been overrun by the Blue, which are mutated insect-like creatures that kill and harvest humans for food. Most of the surviving human race has moved to Second Earth, a huge spaceship that orbits the planet. Yuji and Marlene must work together to reach Second Earth and fight against the Blue.

Mobile Suit Gundam Unicorn
When Banagher Links meets the mysterious Audrey Burne, he inherits the Unicorn Gundam and is swept up into the battle for space colony independence.

NieR:Automata Ver1.1a
The distant future, 5012. The sudden aerial invasion of Earth by <Aliens> and their creations <Machine Lifeforms> led mankind to the brink of extinction. The surviving number of humans who took refuge on the moon to organize a counterattack using <android> soldiers to recapture Earth. However, the war reaches a stalemate as the <Machine Lifeforms> continue to multiply infinitely. In turn, humanity deploys anew unit of android soldiers as an ultimate weapon: <YoRHa> Newly dispatched to Earth <2B> joins <9S>, the analyst currently stationed there, where amid their mission, they encounter a myriad of mysterious phenomena... This is the story of these lifeless <androids> and their endless fight for the sake of mankind.

Martian Successor Nadesico
Only one ship stands between earth and total annihilation! The High Mobile Battleship Nadesico is the most formidable fighting machine ever conceived, but due to a shortage of trained soldiers, the crew is a little unorthodox. The poor Jovians don't stand a chance against the largest contingent of geeks and misfits ever sent into orbit!

Battle of the Planets
G-Force, a five-member superhero team, fights to defend Earth and its space colonies from the threat of the planet Spectra.

SPRIGGAN
An ancient civilization's relics on Earth hold dangerous powers — it's up to ARCAM Corporation's Spriggan agents to keep them out of the wrong hands.

revisions
When Shibuya time-warps to 2388, high schooler Daisuke and his friends are conscripted by AHRV agent Milo to fight the hostile cyborg race, revisions.
Why These Shows Are Similar
These recommendations share core qualities with Knights of Sidonia (2014): Action & Adventure and Animation themes, similar pacing, and comparable production quality. NoBadPicks uses TMDB collaborative filtering, genre matching, and AI analysis to surface series most likely to resonate with fans of Knights of Sidonia.
See full details for Knights of Sidonia (2014)
