Anime enthusiasts have a major new reason to celebrate: one of the most successful animated films ever made has just landed on a free streaming service. 'Demon Slayer: Kimetsu no Yaiba - The Movie: Mugen Train,' the cinematic phenomenon that once held the title of highest-grossing anime film worldwide, is now available to watch at no cost on the ad-supported platform Amasian TV.
Originally released in 2020, the film serves as a direct continuation of the beloved anime series, following young demon slayer Tanjiro Kamado and his companions. They join the powerful Flame Hashira, Kyojuro Rengoku, on a deadly mission aboard the mysterious Mugen Train, facing terrifying demons Enmu and Akaza. The movie was praised for its breathtaking animation and emotional storytelling, earning near-perfect scores from critics and audiences alike on review aggregators and collecting numerous awards.
From Box Office King to Free Streaming
'Mugen Train' isn't just any anime movie—it's a piece of cinematic history. Upon its release, it shattered box office records globally, claiming the crown as the highest-grossing anime film of all time, a title it held for years. It was only recently dethroned by its own sequel, 'Demon Slayer: Infinity Castle,' which debuted in 2025. The film's journey from theatrical juggernaut to accessible streaming hit mirrors the path of other major films finding new audiences online, similar to how Ryan Gosling's 'The Fall Guy' found new life after its theatrical run.
For those new to the saga, 'Demon Slayer' began as a hit manga by Koyoharu Gotouge. It tells the story of Tanjiro, whose family is slaughtered by demons, leaving his sister Nezuko transformed into one. His quest to become a demon slayer and find a cure for her drives the entire narrative. The anime adaptation became a global sensation, setting the stage for the film's massive success.
Where to Stream the Demon Slayer Saga
While the wait continues for the streaming debut of the record-breaking sequel 'Infinity Castle,' fans have the perfect opportunity to revisit or experience the story that started it all. 'Demon Slayer: Mugen Train' is currently available on multiple platforms:
- Amasian TV: Stream completely free with ads. No account is required to start watching.
- Crunchyroll: The premier anime streaming service also hosts the film for subscribers.
- Prime Video: The movie is available for rental or purchase.
This multi-platform availability makes it easier than ever to dive into the action. It's part of a growing trend of major titles becoming freely accessible, much like 'Apocalypse Now' landing on Plex for free viewing.
What's Next for Demon Slayer?
All eyes are now on the future of the franchise. 'Demon Slayer: Infinity Castle,' which continues the final battle against the demon king Muzan, is still enjoying a robust theatrical run in 2026, with its Japanese screenings scheduled through early April. Crunchyroll has not yet announced a streaming date for this sequel, encouraging fans to see it on the big screen while they can. Two additional film sequels have been confirmed to complete the saga, though release dates remain under wraps.
In the meantime, the entire 'Demon Slayer' anime series is available to stream on Crunchyroll, providing the perfect lead-in to the 'Mugen Train' film. This massive availability of content ensures the franchise's legacy continues to grow, captivating new generations of fans. The move to free, ad-supported streaming mirrors strategies seen with other classics, such as Russell Crowe's 'Noah' setting sail on Kanopy.
Whether you're a longtime devotee or a curious newcomer, the arrival of 'Demon Slayer: Mugen Train' on Amasian TV is a major event in the streaming world. It offers a chance to experience a landmark anime achievement that redefined box office potential for the medium, all from the comfort of your home at no cost. Grab some popcorn and prepare for a legendary ride on the Mugen Train.
