The best Isekai Manhwa with Sci-Fi elements

Key recommendations

• Isekai manhwa often feature fantasy archetypes such as magic and demons, set in European-style medieval worlds with knights.
• Sci-fi elements like robots and space travel add excitement to isekai, making the stories more engaging and unique.
• Manhwa as
  The knight king who returned with a god
  mix isekai and reverse isekai, exploring complex themes and different worlds.

Iseki it is represented in a variety of ways, but the most common is a fantasy archetype involving magic, knights, and demons, which is usually set in a place reminiscent of medieval Europe. Because of this, many isekai manhwa tend to feel similar even if they start off differently or have different concepts.

Science fiction in manhwa it's mostly seen in gaming stories, featuring technology that most can only dream of, but the genre is represented in other ways as well. Things like robots and space travel are popular subjects to write stories about, and many authors have used sci-fi elements to make their isekai more interesting and fun to read.

7 Seoul Druid Station

MyAnimeList Score: 6.59

• Published: 2021 to date
• Genres/Themes: Action, Fantasy, Isekai
• Author: Seolwoo Jin
• Illustrator: Hwalseonggom

Although this is more of a returner manhwa than an isekai, it follows many of the same themes and patterns. One day, gates suddenly open on Earth, summoning monsters and transporting certain people to other worlds. Park Suho is taken to a jungle planet inhabited by giant animals and devoid of human civilization. He survives there for hundreds of years, but when he is suddenly teleported back home, only ten years have passed.

This starts out as a typical hunter fantasy, but actually gets more complex as he explores the planets connected to Earth. Using magic and science, humans are able to hold and monitor the dungeons that appear and eventually become able to communicate with and visit other planets. These developments help set this manhwa apart from others like it.

6 God's Gambit

MyAnimeList Score: 6.74

• Published: 2023 to date
• Genres/Themes: Action, Fantasy
• Author: Hwangdong
• Illustrator: Bisamong

Instead of a single person being banished, an entire city in South Korea is transported to another dimension where they become part of a board game. The protagonist, Yul Choi, is randomly given an incredibly powerful item, allowing him to gain information about all the scenarios that arise. Unfortunately, he also steals rewards from other players, so he has no choice but to become a public enemy in order to lead them to success.

Like many other isekai, this manhwa is mostly filled with fantasy archetypes and concepts like magical items, demons, and abilities. The science fiction attributes don't appear until after the first forty chapters, where the city begins to integrate modern technology with magical resources, strengthening it enough to survive nuclear-level threats.

5 The knight king who returned with a god

MyAnimeList Score: 7.26

• Published: 2023 to date
• Genres/Themes: Action, Fantasy
• Author: Saram Sallyeo.
• Illustrator: Jeoncheon Huma Geomsa

This manhwa stands out for being both an isekai and a reverse isekai. The protagonist is reborn as Leon Dragonia in another world and eventually becomes the Lionheart King, who is blessed by the gods. When that world is overrun by monsters, he eventually returns to Earth through gates that usually release monsters. Leon soon becomes a superpower in the world due to his connection to a pantheon of deities.

Although this story is set in the present day, there are still some sci-fi elements that come through. Since the gates connect different dimensions, the enemies are not always monsters like orcs and goblins. A robot is one of the main antagonists of a story arc and later becomes a supporting character, supporting Leon by manipulating the media and the stock market.

4 The world after the fall

MyAnimeList Score: 7.55

• Published: 2022 to ?
• Genres/Themes: Action, Fantasy
• Author: sing N song
• Illustrator: Gamja undead

Although this starts as a tower climbing manhwa, it turns into a great adventure to find the truth about the world. Unlike other isekai stories, the protagonist, Jaehwan, chooses to leave his own world to fight the root of it all, the System. However, in order to do that, he must traverse several different dimensions and battle adapters, nightmares, and gods.

Since this story goes through many different worlds and dimensions, it contains a little bit of everything. There's magic and special powers, zombie outbreaks, a subscriber system, and finally, robots and virtual reality simulations. Androids and drones are just a few of the obstacles Jaehwan has to overcome, and while they only appear for brief moments at a time, they're sure to reappear in later chapters as well.

MyAnimeList Score: 7.76

• Published: 2022 to ?
• Genres/Themes: Action, Fantasy, Isekai, Reincarnation, School
• Author: Gapsong Ji
• Illustrator: Carrot Studio

Being trapped in novels is common in isekai manhwa. In this story, Kim Hajin is trapped in the world of his own web novel after receiving a strange email. Now in the body of a background character, he must compete with the cadets trying to become heroes. As an author, it should be simple, but an unknown editor makes changes to his story, leading to new events and developments.

This manhwa is a great example of Urban Fantasy as it depicts the integration of magic into modern society very well. The story takes place in an island city called CUBE, a high-tech metropolis that supports the academy of the same name to produce heroes. The academy is where most of the technological achievements are seen, creating holograms, simulations and improved weapons.

2 Login We are dying

MyAnimeList Score: 7.91

• Published: 2020 to ?
• Genres/Themes: Action, Adventure, Fantasy, Martial Arts, Video Game
• Author: Zero-LARGE
• Illustrator: Cheolbyeok Jang

A popular piece of fictional technology featured in many manhwa is the fully immersive VR capsule, which allows people to experience a game as if it were real life. Jin Taekyung gets trapped in a virtual world after using a game capsule as a bed, waking up in a Dying world as a young man from a prestigious family. The only way to log out is to complete certain objectives, and if he dies, so will his real body.

A lot of this story actually takes place in a Murim setting, so there's not much in the way of science and technology aside from the game system. However, there are parts where Jin Taekyung returns to the real world and more sci-fi elements can be seen. This manhwa actually takes place in a setting with dungeons and hunters, which is an interesting contrast to the Murim game world.

1 The miracle of the Trinity

MyAnimeList Score: N/A

• Chapters: 102
• Published: 2016 to 2018
• Genres/Themes: Action, Fantasy, Adventure, Sci-Fi, Dying
• Author: Geuk-Jin JEON
• Illustrator: Jin-Hwan PARK

What would happen if science, martial arts and magic were together? The miracle of the Trinity is a manhwa that answers this question. Thanks to the experiments of a company, a connection with different dimensions is made, and the martial artist Gang Woo-Jin and the mage Emily are brought to Earth. With no other way home, the two must trust the company's owner, Sylvia, to repair the machine that connects the worlds. However, there are more problems than meets the eye.

This manhwa does a great job of balancing three separate themes without crowding the story and each has a role to play. The setting is a futuristic Earth, the main antagonist is a demonic sect leader, and the final boss is a massive dragon. Everything is perfectly tied together, which helps keep the focus on the fun story and fantastic action scenes.