The Ultimate Anime Crossover!

Mario and anime come together as one in Isekai Mario, the ultimate anime crossover! Collect over a hundred power stars across multiple scenarios, customize your character's look and voice, summon for hundreds of new anime characters to play as, face off against a wide variety of enemies, interact with a variety of different items, and solve puzzles in this massive crossover of 3D Mario and anime!


Mario meets anime! Play as your favorite anime characters in this 3D Mario fangame!

Isekai Mario features playable characters from a wide variety of different anime franchises including Sword Art Online, Re:ZERO, KonoSuba, Overlord, Shield Hero, Hyperdimension Neptunia, Genshin Impact, Touhou, Hololive, and more! The game includes a scenario system, where each scenario has its own story, star counter, and hub world. Each scenario is its own game! You can play them in any order, and use any playable character in any scenario. Isekai Mario is Hello Fangaming's largest and most ambitious Mario game, and includes more levels, characters, and content than any other Mario game in Hello Fangaming's entire history. As Hello Fangaming's final Mario fangame, this truly is a high note to end on!


Latest version: v1.5

Isekai Mario v1.5 is now available for download

January 12, 2024

It's time to take on the True Demon Lord in the ultimate final showdown in the new Isekai Mario: Finale scenario! This update also adds Isekai Mario's largest and most difficult level to Isekai Trials! Get ready for the exciting finale to Isekai Mario in the v1.5 final update!

  • 25 new character models. (Total: 9 Mario, 300 anime)
  • New scenario added: Isekai Mario: Finale
  • 1 new Isekai Trials level.
  • Reduced the number of elements in Isekai Trials.
  • Added 4 new pictures to Isekaisekai.
  • Added a third daily summon banner on weekdays.
  • Added music to the file select screen.
  • Added randomize function to character select.
  • Added applause sound when you summon a new non-duplicate model.
  • Removed update checker.
  • Bug fixes.

Isekai Mario v1.4.1 is now available for download

July 25, 2023

This update optimizes the game to run better on Android. Due to the popularity of the Android version, it was important to make sure the game runs well on as many different Android devices as possible!

  • 25 new character models. (Total: 9 Mario, 275 anime)
  • The game now uses significantly less RAM.
  • Removed the in-game roadmap.
  • Bug fixes.

Isekai Mario v1.4 is now available for download

March 10, 2023

It's time for an Isekai Mario x The Shroom Project crossover! Escape the horrors that await at an abandoned lab in Shroom Isekai, a brand new horror game themed scenario! There is also one other scenario included in this update. Get ready for Super Sexy Mario Land!

  • 9 new character models. (Total: 9 Mario, 250 anime)
  • 2 new character voices.
  • New scenario added: Super Sexy Mario Land
  • New scenario added: Shroom Isekai
  • Renamed the main story to Isekai Mario: Prologue
  • 1 new Isekai Trials level.
  • Replaced one picture in Isekaisekai.
  • Wednesday's Summon 2 is now The Rising of the Shield Hero.
  • Added Double Coins events.
  • Added progress info and more save files to title screen.
  • Added more options to settings menu.
  • Improved camera.
  • Paintings for cleared levels now have a gold frame.
  • Collecting a star now restores health.
  • Bug fixes.

Isekai Mario Android Edition is now available for download

September 2, 2022

Isekai Mario is now available on Android! Take the ultimate anime crossover with you on the go just like any mobile gacha game!

Isekai Mario v1.3 is now available for download

May 13, 2022

It's time to learn Japanese with the all new Super Nippon Roguelike scenario! Explore randomly generated dungeons, solve Japanese puzzles, and collect the treasures within!

  • 42 new character models. (Total: 9 Mario, 241 anime)
  • 10 new character voices.
  • New scenario added: Super Nippon Roguelike
  • 1 new main story level.
  • 1 new Isekai Trials level.
  • Isekai Trials hub redesign.
  • Added 6 new pictures and MyAnimeList descriptions to Isekaisekai.
  • Replaced one of the unlockable songs in Isekaisekai.
  • Added orange reset switches to Toadette's Sweets Gallery.
  • Added roadmap to the scenario select.
  • There are now 2 different summon banners per day.
  • Added a 10x summon option.
  • Character model optimizations.
  • Added NPC animations.
  • Added cloth and hair physics to character models.
  • Fixed character name: Ames → Ameth
  • Bug fixes.

Isekai Mario v1.2 is now available for download

November 12, 2021

Isekai Mario just got even more anime with the new Isekaisekai scenario! Play anime themed minigames and win lots of coins! The entirety of Super Crown Land was also added as a scenario! Replay this game with all your favorite anime characters!

  • 50 new character models. (Total: 8 Mario, 200 anime)
  • 9 new character voices.
  • New scenario added: Isekaisekai
  • New scenario added: Super Crown Land
  • Isekai Trials is now locked until you reach level 10.
  • There is now a new event every month in the main story.
  • Event items now award xp.
  • Lowered the minimum cost of summoning.
  • Increased the summoning rate up to 66.7%.
  • Tuesday's Summon is now That Time I Got Reincarnated as a Slime.
  • Replaced Toad's Trucking Company NPCs with Genshin Impact characters.
  • The percentage of models unlocked is now displayed.
  • PDF manual file removed. All its contents are now in game.
  • The manual page is now opened automatically while you are level 1.
  • Added the ability to zoom the camera.
  • Voices are now sorted by series.
  • Bug fixes.

Isekai Mario v1.1 (SAGE 2021) is now available for download

August 21, 2021

Isekai Mario arrives at SAGE 2021 with a brand new update!

  • 4 new main story levels.
  • 58 new character models. (Total: 8 Mario, 150 anime)
  • 3 new character voices.
  • Molten Highlands painting moved to a later area.
  • New scenario added: Isekai Remix
  • Lowered the cost of summoning.
  • You can now opt for a random summon instead of today's summon.
  • Preview option added to character select.
  • Bug fixes.

Isekai Mario v1.0 is now available for download

March 19, 2021

The initial release includes 3 scenarios and 100 playable characters!

  • Isekai Mario Main Story
  • Isekai Trials
  • Toadette's Sweets Gallery


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Today's Summon Banners: 66.7% Rate Up!

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Double Coins Day: Please wait...

For every coin you collect, you will receive an additional bonus coin, not including daily mission coins. Available in a different scenario each day!


Each scenario is a separate game with its own story and star count. Play them in any order!

Isekai Mario: Prologue

Stars: 90

Difficulty: Easy

One day, summoning magic was discovered in the Mushroom Kingdom, and with that, the ability to summon those from other worlds is now possible. Unfortunately, things take a turn for the worse! The magic goes out of control, and all the citizens of the Mushroom Kingdom start reincarnating into random anime characters! It is now up to Mario to learn how to use this summoning magic himself, and bring things under control!


Stars: 5

Difficulty: N/A

Welcome to Isekaisekai, The Ultimate Anime Theme Park! Play anime themed minigames and win coin prizes! Learn about the different characters you can summon for and find out about the wide variety of isekai anime that exist in this exciting theme park!

Locked until you reach level 2.

Isekai Trials

Stars: 5

Difficulty: Expert

One day, an otherworldly magic altar was discovered in the middle of the sea in the Mushroom Kingdom. This altar housed magic from another world, and the Royal Magic Institute was formed to research this magic. There is a difficult trial associated with each magic element. Clearing these trials is key to fully understanding this magic. Put your skills to the test by clearing the challenges that await!

Locked until you reach level 10.

Isekai Remix

Stars: 8

Difficulty: Moderate

Play through remixed versions of levels from Toadette's Sweets Gallery and Super Crown Land, and collect the power stars within!

Toadette's Sweets Gallery

Stars: 15

Difficulty: Moderate

The Sweets Gallery is an exhibit full of magical dessert paintings containing worlds within them. The ever curious Captain Toad was exploring these worlds when all of a sudden, the paintings lost their magic, and Captain Toad was left trapped inside! It is now up to you to help Toadette collect the power stars needed to restore magic to the paintings and rescue Captain Toad!

Super Crown Land

Stars: 24

Difficulty: Moderate

Why kidnap the princess when you can become the princess? With the power of the Super Crown, anyone can become one, including Bowser! However, not everyone in the Koopa Kingdom thinks this is a good idea. It is now up to you to help Bowsette put an end to this rebellion, and reunite the Koopa Kingdom under the rule of their new princess!

Super Sexy Mario Land

Stars: 5

Difficulty: Moderate

Your everyday average Japanese salaryman was on his way home after working overtime, when all of a sudden, he was hit by a truck and died! Oh no! He then reincarnated as Mario and woke up in the Mushroom Kingdom, and he's not the only one! Many others have also reincarnated as Mario, but there can only be one! It's time for one of them to become the REAL Super Mario! Mama mia! It's time for the ultimate fever dream!

Super Nippon Roguelike

Stars: 18

Difficulty: Moderate

Welcome to the mythical land of Japan, home of the Japanese language! Here, you will explore randomly generated puzzle filled dungeons while collecting the valuable treasures contained within, all while learning Japanese in the process! It's time to learn Japanese with Super Nippon Roguelike!

Shroom Isekai

Stars: 7

Difficulty: Moderate

The discovery of a lifetime! Mysterious shrooms from another world have appeared, and thanks to the hard work of researchers from the Royal Magic Institute, the development of a miraculous new drug known as the Isekai Shot has been completed! Once the Isekai Shot has been injected into a patient, they gain the special ability to reincarnate into other worlds! A dream come true for isekai fans! It's time to volunteer as a test subject! Let's go!

An Isekai Mario x The Shroom Project Collab!

Isekai Mario: Finale

Stars: 1

Difficulty: N/A

It's time to take on the True Demon Lord in the ultimate final showdown! Get ready for the exciting finale to Isekai Mario!

Locked until you reach level 80.


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