Yes, That Time I Got Reincarnated as a Slime Season 4 is officially confirmed. The announcement for a fourth season and a new movie was made on September 27, 2024, immediately following the finale of Season 3. However, as of September 2025, there is no official release date for Season 4.
Been a minute since Rimuru’s festival wrapped up, hasn’t it? After pouring hundreds of hours into the light novels and re-watching the anime until my eyes glazed over, the wait for the next chapter in Tempest’s grand strategy is starting to feel epic. The great news is that the story is absolutely not over. With a formal announcement already in the books, we know for a fact more slime is on the way. The only real question now is… when?
Is Slime Season 4 Actually Confirmed?
Absolutely, it is 100% confirmed. The production of That Time I Got Reincarnated as a Slime Season 4 was announced on September 27, 2024, right after the final episode of the third season aired. This wasn’t just a quiet confirmation; it came with a special announcement trailer and a new visual featuring a very determined-looking Rimuru, with his voice actor and the voice of Great Sage recording new lines just for the occasion.
When Will Slime Season 4 Be Released?
There is no confirmed release date for Slime Season 4 yet. While the season is officially in the works, the studio hasn’t given any hint of a release window. Looking at the history of the series—Season 1 in 2018, Season 2 in 2021, and Season 3 in 2024—there’s a consistent two to three-year gap. Based on that pattern, it’s reasonable to speculate a premiere in late 2026 or even early 2027, but that is purely an educated guess for now.
What’s the Story for Season 4?
Season 4 is expected to pick up directly from the end of Season 3, adapting Volume 10 of the light novel series. The third season wrapped up the Founder’s Festival arc, which concluded in Volume 9. This means the next major storyline will be what fans call the “Majin Behind The Scenes Arc.” We’ll see Rimuru and the Jura Tempest Federation dive deeper into the complex and hostile politics of the Western States, dealing with the manipulations of Yuuki Kagurazaka and other shadowy figures.
Is There Enough Light Novel Material?
Yes, there is a massive amount of source material still to be adapted. The original light novel series by author Fuse is quite extensive. With the anime having only covered up to Volume 9, there are many more volumes ready and waiting for animation. This wealth of content means Studio 8bit has a clear path forward for not just Season 4, but potentially a Season 5 and beyond.
Which Cast and Studio Will Return?
While an official staff list hasn’t been released, it’s a safe bet that the core team will be back. Studio 8bit has animated every installment of the Slime franchise, and there’s no reason to think they’d stop now. Likewise, the beloved voice cast is expected to return, including Miho Okasaki as Rimuru Tempest and Megumi Toyoguchi as the invaluable Raphael (formerly Great Sage), ensuring the characters we know and love sound exactly the same.
How Did Season 3 Set Up the Next Arc?
The third season ended with the triumphant success of the Founder’s Festival, massively boosting Tempest’s global influence. The finale focused on Rimuru dealing with the aftermath, including putting greedy merchants in their place and setting his future plans in motion. Crucially, it cemented Yuuki as a major antagonist and teased the political schemes of the Western States and the Rosso family, setting the stage for a more intrigue-focused conflict ahead.
What About the New Slime Movie?
Alongside Season 4, a second feature film was also announced. While details were initially scarce, it has since been revealed with a title and release window. The movie is set to premiere sometime in 2026. The production of this new film could be a factor in the release schedule for Season 4, but it also means fans have another big animated adventure to look forward to.
Will Season 4 Live Up to the Hype?
All signs point to yes. After a season focused on nation-building and celebration, the story is poised to shift into a higher gear. The upcoming arcs are packed with political maneuvering, espionage, and the introduction of some of the series’ most formidable antagonists. Rimuru has built his paradise, and now Season 4 will be about the immense challenge of protecting it from the powerful forces that want to see it burn.
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