Nextworld - Recommendations

Alt title: Kitarubeki Sekai

Nextworld

If you're looking for manga similar to Nextworld, you might like these titles.

Legend of the Galactic Heroes: Side Stories (Novel)

Legend of the Galactic Heroes: Side Stories (Novel)

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Thunder Jet

Thunder Jet

Many years ago, the Sacred Galaxy Empire collapsed; chaos ensued, and today an epic struggle for control of the cosmos continues throughout outer space. Several kingdoms vie for power and battle it out in fleets of spaceships, and skirmish on the ground in ancient samurai castles. One such soldier is Rai Ryuga, a go-getter who finds himself quickly promoted from the execution chamber to the role of a commander and beyond. Against fierce generals, alongside newfound comrades and in the midst of betrayal, love and determination, Rai will become a major player in an all-out war that spans galaxies and empires alike.

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Lord Marksman and Michelia (Light Novel)

Lord Marksman and Michelia (Light Novel)

“I’ll be waiting. Until the time when your arrows reach Shizreed.” The bow is the weapon of cowards. Having gotten used to hearing such phrases from his homeland, the girl’s words showed him the path for him to tread and he gained the things he wanted to protect. Two years later, the Kingdom of Brune entered an alliance with Zhcted and they joined forces against the Great Kingdom of Muozinel. The battle seemed to be going well until the Brune forces fell into an ambush and the war front collapsed, forcing Tigre’s troops to retreat in defeat. The one who saved him from his predicament was the Vanadis of the Kingdom of Olmutz, Ludmila. However, what awaited them were more battles. The fight against the forces of darkness in this age of legends starts now!!

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Nambul: War Stories

Nambul: War Stories

The clouds of war are growing thicker. As the second Middle Eastern war drives the world economy toward another crisis, Japan decides to invade Indonesia in search of a new source of oil. Forces are being deployed, and secret alliances are being made. Meanwhile, Hesung, the leader of the Korean-Japanese teenage mob, gets caught on camera by an NHK reporter as he murders the leader of a Yakuza boss on the streets on Tokyo. Now, with the evidence of his act of violence captured on tape, his life is about to change forever.

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Legend of the Galactic Heroes (Novel)

Legend of the Galactic Heroes (Novel)

The “golden brat” Reinhard von Lohengramm, a military prodigy and admiral of the Galactic Empire, has ambitions beyond protecting the borders or even defeating the empire’s enemies. He seeks to overthrow the old order and become a truly absolute—yet benevolent—dictator. His rival, the humble Yang Wen-li of the Free Planets Alliance, wishes to preserve democracy even if he must sacrifice his political ideals to defeat the empire. Their political and military battles play out over a galactic chessboard in an epic saga fifteen centuries in the making!

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Legend of the Galactic Heroes (Ryu FUJISAKI)

Legend of the Galactic Heroes (Ryu FUJISAKI)

This manga tells the story of a distant future within the Milky Way Galaxy, where the Galactic Empire and the Free Planets Alliance are constantly at war. The story begins with the young Reinhard von Müsel, a boy in the Galactic Empire that lives with his drunk father and his beautiful sister Annerose. He becomes close friends with the boy next door, Sigfried. After his sister is taken to become the Kaiser's concubine, young Reinhard is determined to take down the Empire in order to rescue her. He and his loyal friend Sigfried join the military academy together as the first step in Reinhard's plan. 

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Taiheiyou X Point

Taiheiyou X Point

A retired thief comes out of retirement to stop a scientist – who was his last victim – from deploying a bomb that will destroy all the air on Earth. The other tale is an anti-war parable set in World War III, about two bomber pilots who become friends after they duel with each other and both crash.

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Star Blazers: Space Battleship Yamato 2199

Star Blazers: Space Battleship Yamato 2199

In the year 2199, unrelenting attacks from the planet Gamilus have forced all life on Earth into underground dwellings and raised radiation levels to near-toxic levels. The only way to clean up all this harmful radiation is by using the Cosmo Cleaner, which the Queen of the planet Iscandar has generously offered to humanity. Unfortunately, Iscandar is 148,000 light years away, but Earth only has one year before rising radiation levels make it uninhabitable! The only vessel capable of making the journey is the Yamato - a spaceship equipped with advanced technology and modeled after the famous WWII battleship. Can the crew of the Yamato make it to Iscandar and back before the extinction of all life on Earth?

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Isekai Kokka Alchimaira: Saijaku no Ou to Musou no Gunzei (Light Novel)

Isekai Kokka Alchimaira: Saijaku no Ou to Musou no Gunzei (Light Novel)

Herian was the ultimate player of the nation-building VR game “Tactics Chronicle” when he got transported into the country he built himself in the game. There, he met the great army of magical beast which possessed their own ego, as well as his peerless former NPC generals. Hiding his identity, what he found together with his vassals were the Elves battling against a great evil. Seeing the tears of the innocent masses, he came to a realization of his duties as king and made a declaration in anger. To vanquish evil with the hundred thousand magical troops under his command! “Stand up, my brave people! Now is the time to bare your anger!” ““OOOOOOOOOOHH!!!” The moment the thunderous roars resounded—the peerless Alchimaira breaks off ahead!! The king of a thousand beasts now orders the attack of the strongest army!!

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Isekai Kokka Alchimaira: Saijaku no Ou to Musou no Gunzei

Isekai Kokka Alchimaira: Saijaku no Ou to Musou no Gunzei

Herian was the ultimate player of the nation-building VR game “Tactics Chronicle” when he got transported into the country he built himself in the game. There, he met the great army of magical beast which possessed their own ego, as well as his peerless former NPC generals. Hiding his identity, what he found together with his vassals were the Elves battling against a great evil. Seeing the tears of the innocent masses, he came to a realization of his duties as king and made a declaration in anger. To vanquish evil with the hundred thousand magical troops under his command! “Stand up, my brave people! Now is the time to bare your anger!” ““OOOOOOOOOOHH!!!” The moment the thunderous roars resounded—the peerless Alchimaira breaks off ahead!! The king of a thousand beasts now orders the attack of the strongest army!!

I agree