Multiversecrossover Stories

After the events of Kamen Rider Gaim, the man who became the King of the Helheim Forest, Kota Kazuraba, continues his journey across countless worlds alongside the Riders who once fought beside him. During one of his travels, Kota discovers a mysterious world unlike any he has ever seen-a world ruled by gods, adventurers, and an endless labyrinth known as the Dungeon. Drawn by its powerful destiny and the countless lives struggling within it, Kota decides to settle in the city of Orario. Together with Kaito Kumon, Takatora Kureshima, Mitsuzane Kureshima, Mai Takatsukasa, and many other Riders, Kota establishes a new Familia under the banner of the Orange Lockseed. Thus, the Gaim Familia is born. As adventurers, the Riders quickly become famous throughout Orario. Their strange armor, mysterious transformation devices, and overwhelming combat abilities leave both gods and adventurers wondering who they truly are. Some see them as heroes. Others see them as rivals. A few fear them as monsters wearing human faces. Meanwhile, Kota senses an ancient evil hidden deep beneath the Dungeon-something that recognizes the power of the Golden Fruit and remembers a forgotten age before the gods descended from heaven. As the Gaim Familia explores the Dungeon's deepest floors, they uncover secrets capable of shaking both the mortal world and the heavens themselves. Along the way, they forge friendships with adventurers such as Bell Cranel, Ais Wallenstein, and Ryuu Lion, while earning the attention of powerful deities including Hestia, Loki, and Freya. But Orario is about to learn a simple truth: The Riders are not ordinary adventurers. They are warriors who have fought world-ending threats, survived apocalyptic wars, challenged gods, and protected entire realities. And now... The Dungeon will face the Riders.

Spoilers for all 4 of these fandoms

Steve was lost in Battleworld, still without his Tony who was stuck in another dimension. And as if his cries were heard and he met another Tony from another universe, who was desperately missing his Steve. [Avengers Assemble! Steve x Marvel's Avengers (2020)! Tony]

One day error and nightmare where walking through the forest until they found an unknown portal and went inside. They find themselves in an unknown place. They have to fit in while also trying to find a way back to their own multiverse.