Movies like Doraemon the Movie: New Nobita and the Castle of the Undersea Devil (2026)

Name: Doraemon the Movie: New Nobita and the Castle of the Undersea Devil
Released: 2026

10 films to watch after Doraemon the Movie: New Nobita and the Castle of the Undersea Devil, ranked by how well they match its tone — not just its genre.

Nobita and friends finds a secret underwater castle packed with mysteries and riches. With Doraemon's high-tech gadgets, they dive into an ocean adventure mixing humor, teamwork, and imagination in a breathtaking aquatic world.

1

Castle in the Sky (1986)

Fit 70%

Shares Adventure, Fantasy, Animation and Family with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

A young boy and a girl with a magic crystal must race against pirates and foreign agents in a search for a legendary floating castle.
2

Children Who Chase Lost Voices (2011)

Fit 70%

Shares Animation, Adventure, Fantasy and Family with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

The film centers on Asuna, a young girl who spends her solitary days listening to the mysterious music emanating from the crystal radio she received from her late father as a memento. One day while walking home she is attacked by a fearsome monster and saved by a mysterious boy named Shun. However, Shun disappears and Asuna embarks on a journey of adventure to the land of Agartha with her teacher Mr. Morisaki to meet a Shun again. Through her journey she comes to know the cruelty and beauty of the world, as well as loss.
3

Howl's Moving Castle (2004)

Fit 66%

Shares Fantasy, Animation and Adventure with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

Sophie, a young milliner, is turned into an elderly woman by a witch who enters her shop and curses her. She encounters a wizard named Howl and gets caught up in his resistance to fighting for the king.
4

Pokémon: Giratina and the Sky Warrior (2008)

Fit 60%

Shares Family, Adventure, Animation and Fantasy with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

When Giratina is discovered to be able to create parallel dimensions, it's up to Ash and his friends to stop a mysterious stranger from using its powers for evil.
5

That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (2022)

Fit 57%

Shares Animation, Fantasy and Adventure with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

A long-running conspiracy is swirling over a mysterious power wielded by the Queen in Raja, a small country west of Tempest. When a slime who evolved into a Demon Lord named Rimuru Tempest crosses paths with Hiiro, a survivor of the Ogre race, an incredible adventure packed with new characters begins. The power of bonds will be put to the test!
6

Sailor Moon SuperS: The Movie - Black Dream Hole (1995)

Fit 54%

Shares Animation and Fantasy with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

The wicked Badiyanu has come to capture all Earth's children to gain enough power to absorb the planet in her Black Dream Hole. The Black Dream Hole is in Badiyanu's castle and absorbs the dream energy from children. The more children Badiyanu kidnaps, the larger the dream hole gets. The Sailor Team must save Earth's children and prevent the Black Dream Hole from enveloping the entire planet!
7

Crayon Shin-chan: Honeymoon Hurricane ~The Lost Hiroshi~ (2019)

Fit 51%

Shares Animation, Adventure and Family with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

Hiroshi and Misae have never been to a honeymoon trip to a foreign country. One day, Misae discovered an inexpensive and family-friendly holiday package to Australia and the Nohara family decided to make it their first honeymoon vacation. Hiroshi gets kidnapped upon arrival to Australia, leaving Shinnosuke, Misae and others on a dangerous journey. It turns out that Hiroshi is the key to a secret treasure. The remaining members of the Nohara Family must rescue Hiroshi, while a mysterious masked man and treasure hunters from all over the world are after him. The struggle is among three different groups in this action-filled treasure hunting adventure.
8

Pokémon: Destiny Deoxys (2004)

Fit 48%

Shares Family, Adventure, Animation and Fantasy with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

Deoxys, a Pokémon from outer space, terrorizes the high-tech city Ash Ketchum and his friends are visiting.
9

Summer Wars (2009)

Fit 46%

Shares Animation with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

Teenage math whiz Kenji Koiso agrees to take a summer job at the Nagano hometown of his crush, Natsuki. When he arrives, he finds that her family have reunited to celebrate the 90th birthday of their matriarch. His job: pretend to be Natsuki's fiancé. Meanwhile, his attempt to solve a mathematical equation causes a parallel world's collision with Earth.
10

Digimon Adventure: Last Evolution Kizuna (2020)

Fit 46%

Shares Animation, Adventure and Fantasy with Doraemon the Movie: New Nobita and the Castle of the Undersea Devil.

Tai is now a university student, living alone, working hard at school, and working every day, but with his future still undecided. Meanwhile, Matt and others continue to work on Digimon incidents and activities that help people with their partner Digimon. When an unprecedented phenomenon occurs, the DigiDestined discover that when they grow up, their relationship with their partner Digimon will come closer to an end.