If you liked the Digimon Season 3: Tamers anime, the Anime-Planet community thinks you'd like:
Netto and his personal Net Navi called Rockman are called into duty once more to save their world from an evil organization called Nebula. These mysterious "Dark Loids" are out to destroy all humans, by creating Dimensional Areas and attacking the real world! Using a Synchro Chip, Netto is able to perform a new special ability called "Cross Fusion", which enables him to merge with Rockman. It's up to Netto and Rockman, along with long-time rivals Enzan and Blues, to thwart all evil, and save their world once again!
For the first time in both of these series, the digital enemies (viruses and evil digimon) invade the real world and threaten the safety of everyone there. In response, the digi-destined and net battlers also find a way to bring their digital friends into the real world, and the battles begin. Both groups have to deal with the safety of people around them, threats that pop up without warning, and the secrecy needed to protect those they care about.
Yugi Mutou was a boy who was constantly bullied – until one day he managed to put together an ancient and mysterious puzzle that no one has been able to solve for two hundred years. Now, whenever Yugi's friends are threatened, a strange transformation occurs, and Yugi seems to become an entirely different person. This transformed Yugi is a master of games, and uses these spontaneously-invented games to trap and to punish the bad guys. At the end of each game, his opponent appears to suffer a painful death; but it is soon revealed that this was all in their minds – or was it?
In Both series The characters get to use card in battles that will help them in their mission. To protect the human world from being destroy They have duels and the storyline is kind of the same. so if u like Digimon season 3 you'd like Yu-Gi-OH.
The future of Duel Monsters has finally arrived! With it has come a new form of dueling known as "Riding Duels," which many duelists are eager to take up and learn. One such player is Yusei Fudo, an aspiring rider duelist who lives in the slum area known as Satellite; he has been wronged by the system and is on a mission to defeat his archrival: Jack Atlus, the Absolute King of the Riding Duel. With Jack having wronged him in his past, Yusei chooses to exact his revenge by taking his title; but, with a strange, unfamiliar set of rules and many foes ahead, will he ever reach Neo-Domino City and claim his prize?
Both of these series seem to give a bit of a darker edge to already familiar franchises. 5D's and Tamers both introduce characters who are more calm and collected than their earlier series. For the main characters, it would seem that what they do it taboo according to those in authority over them. If you liked Digimon, you should like Yu-gi-oh and vice-verse. And if you liked Tamers or 5D's, then you should definately like the other.
Ever since Yugi Mutou completed the Millennium Puzzle his life has changed; he's made friends, learned how to play the card game Duel Monsters and has gained more confidence in himself. After his grandfather is beaten in a duel he is challenged by Seto Kaiba, ranked number two in the world, but Yugi beats him regardless. Now, as a result of his victory, Yugi has attracted the attention of the game's creator, Pegasus. Yugi is then challenged to a dual in an alternate reality where magic brings the monsters to life, but is beaten and his grandfather's soul is taken. In order to retrieve it Yugi must now participate in a tournament against the best duelists in the world, defeat the game's creator, and learn more about the secrets within his Millennium Puzzle!
Yu-gi-oh and Digimon Tamers have a lot in common. First off, the shows are both based on card games. But, the games become more than games, the monsters in the cards become 'real' and the characters in the series have to fight using the cards and the monsters. The fate of the world lies in the hands of those with the cards and the skills.