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The first reviews of Demon Slayer: Infinity Castle are in, and the new anime movie is being called “fantastic” but “flawed”

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Demon Slayer: Infinity Castle review: “Roars past Mugen Train as Demon Slayer’s best adventure yet”

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Demon Slayer

Demon Slayer: Infinity Castle Rotten Tomatoes score is near-perfect, and it’s currently one of the best-reviewed anime movies of all time

Bradley Russell

11 September 2025

Infinity Castle is at 95% on Rotten Tomatoes

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(Image credit: Koyoharu Gotoge/SHUEISHA, Aniplex, ufotable)

The Demon Slayer: Infinity Castle Rotten Tomatoes score is in – and it’s good news for those hoping for a positive response to the beginning of the epic, Tanjiro-starring trilogy.

Demon Slayer: Infinity Castle is currently at 95% on Rotten Tomatoes after 20 reviews, while the audience score is at 100%.
How does that 95% score fare compared to Infinity Castle’s peers, both classic and contemporary? With the major caveat that the Rotten Tomatoes score can change at any moment, it currently sits pretty as the 13th best-reviewed anime of all time, flagging slightly behind the likes of Spirited Away (96%), Kiki’s Delivery Service (98%), Jujutsu Kaisen 0 (98%), and its own predecessor, Mugen Train (98%).

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The first reviews of Demon Slayer: Infinity Castle are in, and the new anime movie is being called “fantastic” but “flawed”

Sorry, Studio Ghibli: Demon Slayer: Infinity Castle is now the highest-rated original anime movie of all time on IMDb

Demon Slayer: Infinity Castle review: “Roars past Mugen Train as Demon Slayer’s best adventure yet”

Reviews trickling in just before release has done nothing to dampen the expectation from fans. Early box office projections suggest it’s going to swipe the record for biggest opening US box office weekend for an anime from Pokémon: The First Movie.

First airing in 2019, Demon Slayer has enjoyed a meteoric rise towards becoming one of anime’s leading lights in recent years. Its 2020 mainline movie Mugen Train was that year’s highest-grossing feature, while it has already picked up Best Anime at Crunchyroll’s Anime Awards back in 2020. Since then, seasons based on the Entertainment District, Swordsmith Village, and Hashira Training manga arcs have been adapted. The story is then set to come to a close with an Infinity Castle movie trilogy in the coming years.
On anime’s surge into the mainstream, Tanjiro English-language voice actor, Zach Aguilar, can scarcely believe that the series has turned into a worldwide sensation.
“I see stickers on the backs of people’s cars. I see it on billboards. Maybe it’s advertising on the side of a bus or I walk into a grocery store [and] see Demon Slayer merchandise,” Aguilar told GamesRadar+. “When we record the show and even the movies, we go into a booth and work with a handful of people. [Then] you go and meet all of these fans face to face, and you go out on stage and there’s a roaring crowd, and you can’t even see the back of the room. It truly is mind-blowing. It’s turned into something phenomenal. And I’m just stoked to be a part of it.”
Demon Slayer: Infinity Castle hits cinemas on September 12. For more, check out our Demon Slayer: Infinity Castle review, plus a whistlestop tour on what to watch before Infinity Castle.

See more Movies News

Bradley Russell

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I’m the Senior Entertainment Writer here at GamesRadar+, focusing on news, features, and interviews with some of the biggest names in film and TV. On-site, you’ll find me marveling at Marvel and providing analysis and room temperature takes on the newest films, Star Wars and, of course, anime. Outside of GR, I love getting lost in a good 100-hour JRPG, Warzone, and kicking back on the (virtual) field with Football Manager. My work has also been featured in OPM, FourFourTwo, and Game Revolution.

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The first reviews of Demon Slayer: Infinity Castle are in, and the new anime movie is being called “fantastic” but “flawed”

Sorry, Studio Ghibli: Demon Slayer: Infinity Castle is now the highest-rated original anime movie of all time on IMDb

Demon Slayer: Infinity Castle review: “Roars past Mugen Train as Demon Slayer’s best adventure yet”

Anime is more mainstream than ever, and Demon Slayer stands out as the franchise to beat

Demon Slayer: Infinity Castle’s latest record-breaking achievement might be its most impressive yet – and almost guarantees a success at the US box office

Demon Slayer: Infinity Castle shows off more of its main battle as it gets closer and closer to making box office history in Japan

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What to watch before Demon Slayer Infinity Castle – all essential and skippable episodes

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