Demon Slayer watch order

Season 1, the Mugen Train movie, then each arc in release order, ending with Infinity Castle.

1. Season 1: Tanjiro Kamado, Unwavering Resolve Arc (TV, 2019, 26 episodes)
2. Mugen Train (film, 2020 — or the 7-episode TV version, which adds one original episode)
3. Entertainment District Arc (TV, 2021–2022)
4. Swordsmith Village Arc (TV, 2023)
5. Hashira Training Arc (TV, 2024)
6. Infinity Castle, Part 1 (film, 2025)