Watch "Marblegen: Season 1" on Netflix Belgium

Cosmo, Sam and Luna meet the unbeatable Aïssa and learn that this year's Marblegens ournament winner will take home the legendary Mercury marble.

Available on Netflix Belgium

The friends form a team to register for the tournament but first, they need real Marblegens in order to compete and Luna knows where to find them.

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The Meteor team is trapped in the Olympia Observatory and stalked by a giant spider after an alchemical accident in the lab creates a spatial loop.

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The Meteors must retrieve the Costello's Spell Book at the King Corporation and get back in time to play in their match against the Crimson Knights.

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The Meteors try to win back a marble that Zumeo and Gaia Fulmina lost long ago in an illegal Ultimate Battle against a pair of archaeologist thieves.

Available on Netflix Belgium

Luna accepts a powerful mythical gift from a shopkeeper and uses it to create special "serpent marbles," unaware of the dangerous side effects.

Available on Netflix Belgium

King is to blame when Aïssa must perform in a dance audition that gets rescheduled to take place at the same time as a Marblegens match.

Available on Netflix Belgium

When a sports clothing brand wants to hire Cosmo as its new spokesman, the lure of fame and fortune goes to his head and he treats others badly.

Available on Netflix Belgium

The Mirages acquire a creature Marblegen but Cosmo accidentally blinds himself with an alchemical powder, putting an upcoming match in doubt.

Available on Netflix Belgium

Sam investigates a mysterious, masked player called Unik who is about to take on the Meteors, while Cosco deals with his crush on another player.

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During a match, Aïssa discovers that she is trapped in a time loop and has repeatedly relived her birthday, which always ends in disaster.

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The Meteors search for a locust marble that will help them defeat the Druids, whose special marbles possess the powers of flowers and plants.

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An explosion during a match pitting the Meteors against the Werewolves results in Remus becoming a dog that escapes from the arena.

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Cosmo foolishly uses a marble that results in him losing his memory, which he must get back before nightfall or else his amnesia becomes permanent.

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Bombi steals the Gemini astroset and demands that Cosmo and Sam return home, so Cosmo comes up with a plan to get Romulus and Remus back.

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In order to get a piece of meteorite that could help rebuild Romulus, the Meteors must play a match against the ghosts of snipers from the past.

Available on Netflix Belgium

The Meteors are set to play against the circus-style Fizzinis in an acrobatic Parkour battle, but Cosmo is suffering from vertigo.

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An old family recipe leads Luna to start making Bellatrix but the alchemist for another team, the Valkyries, is creating the same marble.

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King devises a fiendishly clever scheme to steal Vulcan, a powerful marble, from the Meteors by having Kali switch bodies with Aïssa.

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A mystery opponent is preventing the Meteors from making the Cancer astroset and rejected apprentice alchemist Sam may have something to do with it.

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Luna accidentally implodes the Marblemachine and King's henchmen scoop up all the needed replacement parts before the Meteors can get to them.

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King and Zumeo are forced to work together when powerful Mayan marble Quetzalcoatl kidnaps Romulus, Cosmo and Kali and takes them to the Ether world.

Available on Netflix Belgium

The Meteors investigate when Gamayun, a marble that predicts the future, is stolen from their rival team, the Tsareviches.

Available on Netflix Belgium

A new referee named Jack Snake makes unfair calls, causing the Meteors to lose, and they find that Snake has stolen Harry Cup's voice using voodoo.

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The creature marble Phobos takes Aïssa, Cosmo and the Olympian Snipers into a parallel world where they are forced to confront their biggest fears.

Available on Netflix Belgium

After a prophetic dream warns them that the Monarks will use Jupiter, the Meteors borrow the strongest marbles from all of the other teams.

Available on Netflix Belgium