Yu-Gi-Oh! Duel Monsters centers around the journey of the spirit of an ancient Egyptian pharaoh who is trying to re-discover who he was many years ago, since he has lost his memories. With the help of a boy, Yugi Mutou, the one who awakened the spirit, and his friends, he battles many villains and adversaries. Many of the villains have been linked to the Nameless Pharaoh's past, due to the Millennium Puzzle he holds and many try to take the puzzle and his power away from him. 
The series focuses on the card game aspect of it and the main theme represented throughout the series is friendship.

Duel Academy, one of the most prestigious schools in Duel Monsters history. There, students learn the fundamentals of becoming not just duelists, but large business owners.

Judai Yuki is a new student with only one thing on his mind: to become the next King of Games. Judai meets several friends, teachers, and even enemies at the large Dueling school. There, he'll have to face off against several different dorms&mdash;Slifer Red, Ra Yellow, and Obelisk Blue&mdash;to become the number one duelist. Will Judai be able to pass all of them?

Based on Kazuki Takahashi's world-famous anime and manga, <cite>Yu-Gi-Oh!</cite>.

Yu-Gi-Oh! 5D's is set in Neo Domino City some time after the events concerning Yugi Mutou (DM) and Judai Yuki (GX). A new form of dueling, "Riding Duels", now take place on motorcycles called "D-Wheels". While regular dueling still exists, Riding Duels have become a popular form of entertainment for spectators, who watch them in specially-designed stadiums.

10th grader Yugi spent most of his time alone playing games--until he solved the Millennium Puzzle, a mysterious Egyptian artifact! Possessed by the puzzle, Yugi becomes Yu-Gi-Oh, the King of Games, and challenges evil-doers to the Shadow Games--weird games with high stakes and high risks! These graphic novels contain new stories not seen in the anime, including the origin of Yugi and his friends!
 
(Source: Viz Media)
 
Notes: 
- The Viz Media release split the series into three parts with separate chapter/volume counts. "Yu-Gi-Oh!" includes volumes 1-7, "Yu-Gi-Oh!: Duelist" includes volumes 8-31, and "Yu-Gi-Oh!: Millennium World" includes volumes 32-38. 
- The final chapter of Viz Media's "Yu-Gi-Oh!" was moved from its final volume to the first volume of "Yu-Gi-Oh!: Duelist."

Anubis, an ancient Egyptian evil that was defeated by Yugi's alter ego centuries ago, has returned to exact revenge. Wielding the power of the Eighth Millennium Item, Anubis is determined to destroy Yugi and take over the world.
 
(Source: Anime News Network)

A special episode of 'Yu-Gi-Oh! Duel Monsters' aired in between episodes 88 and 89. Mainly narrated by Anzu, the special recaps the major events of the Battle City tournament, beginning from the Pharaoh's meeting with Ishizu, and retelling several important duels including Yugi and Seto's tag duel, and Yugi's duels against Jonouchi and Bakura, up to Jonouchi's battle with Rishid on the Battle Ship. The special ends with Anzu wishing the series a happy new year.

While riding with Jack Atlas and Crow Hogan, Yusei Fudos's Stardust Dragon is captured by Paradox, a mysterious Turbo Duelist from the future, during a Turbo Duel and turned into a Sin Monster. With the help of the Crimson Dragon, Yusei chases after Paradox as he enters a time slip, ending up in the past. During this time, Paradox duels against Jaden Yuki, who is still able to use the powers of Yubel and The Supreme King. However, by this time Paradox had also captured Cyber End Dragon and Rainbow Dragon and overwhelms Jaden. He is saved thanks to Yusei and the Crimson Dragon. Jaden informs Yusei of Paradox's true intentions. By stealing various monsters from across time and turning them dark, he plans to kill Maximillion Pegasus, the creator of Duel Monsters, preventing the game from being created and causing the events of all three series to never happen. Yusei and Jaden agree to pursue Paradox, which leads them to the past and causes a meeting with the King of Games, Yugi Mutou. However, by the time Yusei &amp; Jaden arrive, Paradox had already attacked his time, supposedly killing both Pegasus and Yugi's grandpa, and had also managed to steal Blue-Eyes White Dragon and Red-Eyes Black Dragon. After explaining everything to Yugi, he agrees to fight with Yusei and Jaden against Paradox in the ultimate three-on-one duel to free the trapped monsters and save both the world and time itself before it's too late. 
(Source: Wikipedia)

Yuugi is a somewhat frail young boy who happens to be a big fan of gaming of any kind. But when he solves an ancient egyptian puzzle he is granted all the powers of darkness. Now when confronted with danger and injustice, he transforms into a much darker and dangerous form, and proceeds to dish out the justice and punishment for those who so richly deserve it. 
(Source: AnimeNfo)

The story takes place in the near future in a city called Heartland. Tsukumo Yuma is a young duelist who strives to become the Duel Monsters champion, despite being an amateur. One day, during a duel with a school bully, a mysterious spirit called Astral appears before Yuma, and helps him to win. Astral then explains to Yuma that he is searching for his lost memories, which have been transformed into 99 "Xyz Monster" cards called "Numbers" and have been scattered across the globe. The "Numbers" have the ability to possess the duelists who own them and bring out their darkest desires. In order to recover his memories, and collect the "Numbers" cards, Astral teams up with Yuma.

Thanks to the Leo Corporation, headed by Reiji Akaba, new advancements to Solid Vision, the holographic system that gives life to the Duel Monsters card game, give physical mass to monsters and environments, allowing players to interact directly with them. This has given birth to challenging Action Duels, in which duelists may traverse environments to locate Action Cards to help them in a pinch. The story follows Yuya Sakaki, a second year middle school student at Miami City's You Show Duel School, whose father disappeared three years ago when he was scheduled for an important duel. While facing off against the current Action Duel champion, Yuya awakens a new power from his pendant, known as Pendulum Summoning.

Set six months after the events of the original Yu-Gi-Oh! manga, Yugi Muto and his friends are in their final year of high school and are talking about what they will do in the future. Meanwhile, Seto Kaiba has commissioned an excavation to retrieve the disassembled Millennium Puzzle from the ruins of the Millennium chamber. The item had previously housed the soul of his rival, Atem, whom he hopes to revive in order to settle their score. The excavation is interrupted by a mysterious man, who faces Kaiba in a game of Duel Monsters and steals two pieces of the recovered Puzzle. What is his ulterior motive? The stakes have never been higher; the rivalries never as fierce; the risks never so great. 
 
(Source: Wikipedia)

The sixth anime series in the Yu-Gi-Oh! franchise. VRAINS is an acronym for "Virtual Reality Artificial Intelligence Network System".
 
In futuristic Den City, people duel using digital cards in the VR space "LINK VRAINS" managed by SOL Technology, Inc. A mysterious organization known as the Knights of Hanoi hacks into LINK VRAINS in search of a runaway AI program, Ignis. One duelist with the username "Playmaker" stands against this threat. His true identity is high school student Yuusaku Fujiki, a skilled hacker with a dark past and a grudge against Hanoi. When he becomes the first to capture Ignis, a struggle between Yuusaku, SOL Technology, and the Knights of Hanoi ensues. 
 
(Written by Edo)

The seventh anime series in the Yu-Gi-Oh! franchise.
 
The series takes place in the futuristic town of Gouha and stars Yuga Oudou, a fifth-grade, elementary school student, who loves both inventions and dueling. Feeling that the current rules of the Duel Monsters card game are too stifling, Yuuga successfully manages to install a new set of rules of his own creation known as "Rush Duel", allowing for more fast-paced and frantic dueling. The series follows Yuuga and his friends as they show off the delights of Rush Duels while under the watchful eye of the Gouha Corporation that oversees the city. (Source: Wikipedia)

Yu-Gi-Oh! Capsule Monsters is a twelve-episode mini-series commissioned, produced, and edited by 4Kids Entertainment and animated by Studio Gallop. The miniseries is officially considered to be part of the fifth season of Yu-Gi-Oh! Duel Monsters, taking place between the events of the "Grand Championship" and "Dawn of the Duel" arcs (episodes 198 and 199).
 
(Source: Wikipedia)

The eighth anime series in the Yu-Gi-Oh! franchise.

A short animation commemorating the 25th anniversary of the Yu-Gi-Oh! Official Card Game.

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