Animation

When Does A Certain Scientific Railgun Season 4 Come Out? Is It Renewed?

A Certain Scientific Railgun Season 4 has not been confirmed yet.

IMDb

7.4/10

Seasons

4

Episodes

73

A Certain Scientific Railgun poster

Diagnostics

Network
Tokyo MX
First aired
2009-10-02
Last aired
2020-09-25
Runtime
24 min
Rated
TV-14

Awards 2 wins & 13 nominations total

Search interestRising ↗

Predictive Logic Analysis

The 68-month gap since Season 3 (T) ended in September 2020 is hard to ignore. For a seasonal anime, that kind of silence typically means either a production is quietly in development without announcement, or the show has effectively wound down even without a formal cancellation. Railgun is not unique in taking long breaks between seasons, and the source manga by Kazuma Kamachi is ongoing, so there is material to adapt. But the absence of any production announcement from ASCII Media Works, J.C. Staff, or the franchise rights holders is a genuine red flag at this point.

The franchise context matters here. A Certain Scientific Railgun is a spin-off of A Certain Magical Index, and both properties are tied together commercially. Index III aired in 2018-2019, and there has been no new Index anime either, which suggests the broader franchise may be in a holding pattern rather than dead. Season 3 of Railgun drew strong episode ratings (averaging 8.2 compared to 6.7 the prior season), which is a positive signal for audience enthusiasm when it did air. The IMDb rating of 7.4 is decent but not exceptional. The 100/100 search interest score is striking and likely reflects ongoing fanbase activity and anticipation rather than a specific news event. Trakt watchers are steady at just under 3,000, which for a niche anime on a streaming-dependent international audience is reasonable. None of these audience signals are strong enough to overcome the production silence, but they do confirm the show has not been forgotten.

What is A Certain Scientific Railgun about?

A Certain Scientific Railgun centers on Mikoto Misaka, an elite Esper with the rare ability to generate and manipulate electricity with such precision that she can fire coins as devastating projectiles—her signature "railgun" attack. Living in Academy City, a sprawling techno-metropolis built on the study and cultivation of supernatural abilities, Misaka discovers that power is less interesting than the friendships she forges. Alongside her teleporting roommate Kuroko, steadfast Uiharu, and the determined ordinary girl Saten, Misaka navigates school life, investigations as a member of the Judgment law enforcement team, and increasingly complex conspiracies that threaten the city's fragile balance. The show hooks viewers with a deceptively simple premise—powerful teenagers fighting crime—that gradually reveals deeper mysteries about the nature of Esper abilities and the shadowy forces controlling Academy City.

What sets Railgun apart from typical supernatural action fare is its tonal flexibility and genuine character chemistry. The series moves fluidly between comedic slice-of-life moments and genuinely suspenseful arcs, never letting action dominate the emotional core of its story. The four main characters feel lived-in and distinct, from Misaka's competitive determination to Kuroko's bratty affection to Saten's buoyant normalcy in a world of superpowers. The animation captures both the whimsy of schoolgirl antics and the technical precision of combat, making even routine fights visually satisfying. There's a distinctly Japanese sensibility to the humor and pacing that makes it feel thoughtful rather than rushed, and the show's world-building unfolds naturally through conversation and discovery rather than exposition dumps.

The series has maintained a devoted international fanbase since its 2009 debut, with solid critical appreciation reflected in its 7.4 IMDb rating. While it may not command the mainstream recognition of flagship shounen properties, Railgun has proven its staying power across four seasons and a decade-long run, a testament to both the quality of its storytelling and the loyalty it inspires. The show appeals equally to those seeking serious narrative depth and viewers who simply want to spend time with characters they genuinely care about in a richly realized world.

Railgun occupies a unique position as a spin-off of the Index franchise that arguably surpassed its source material in both narrative focus and character development. It represents a particular subgenre of anime that prioritizes character-driven storytelling and world-building over sheer power escalation, earning respect from critics who value cohesion and emotional resonance. Its cultural impact extends primarily through dedicated fan communities, but within anime circles, it remains a touchstone example of how supernatural action series can be both intellectually engaging and deeply human.

Themes

supernaturalpsychic powertragedyschoolfemale protagonisttokyo, japanmiddle schoolbased on mangaspin offsuper power

Is A Certain Scientific Railgun renewed or cancelled?

Working toward renewal

medium

Unusually high search interest (100/100) suggesting strong ongoing fan demand

medium

Source manga is ongoing, providing material for future adaptation

medium

Season 3 episode ratings averaged 8.2, a notable improvement over Season 2's 6.7

low

Trakt active watchers steady at ~2,800, indicating the audience has not evaporated

Working against it

high

68 months since last season aired with no renewal announcement

high

No renewal signals or production announcements from any credible source

medium

Broader franchise (A Certain Magical Index) also has no new anime, suggesting a franchise-wide pause

low

IMDb rating of 7.4 is moderate, not a standout performer by ratings metrics

low

Episode rating trajectory falling across Season 3 despite high average

A Certain Scientific Railgun Season 4 Release Date

If a new season were announced today, a realistic production timeline for J.C. Staff would put it at least 18 to 24 months out, given typical anime production schedules. The franchise has historically had multi-year gaps between seasons (Season 2 aired in 2013, Season 3 not until 2019), so a long wait is precedent rather than exception. However, the closer analogy is the current silence: with no announcement after nearly six years, there is no basis to forecast a specific release window. If an announcement came in 2025, a 2026 or 2027 premiere would be the earliest plausible range. Until there is word from the production committee, any timeline is speculation.

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Best & worst episodes

A Certain Scientific Railgun seasons

A Certain Scientific Railgun2009 · 24 ep
  • 1. Electromaster2009-10-02 · ★ 5.3
  • 2. When Working Under a Hot Sun, Rehydration Is Essential2009-10-09 · ★ 7.0
  • 3. Tokiwadai Is Targeted2009-10-16 · ★ 6.8
  • 4. Urban Legends2009-10-23 · ★ 7.0
  • 5. A Certain Pair of New Trainees2009-10-30 · ★ 6.8
  • 6. Everyone is Proactive When it Comes to This2009-11-06 · ★ 6.5
  • 7. Abilities and Powers2009-11-13 · ★ 6.8
  • 8. Level Upper2009-11-20 · ★ 6.5
  • 9. Majority Report2009-11-27 · ★ 6.8
  • 10. Silent Majority2009-12-04 · ★ 6.8
  • 11. Dr. Kiyama2009-12-11 · ★ 6.8
  • 12. AIM Burst2009-12-18 · ★ 6.8
  • 13. A Bikini Divides the Eyeline Between Top and Bottom, But a One-piece Shows Off the Figure, So They Only Flatter the Slender2009-12-25 · ★ 6.2
  • 14. Special Workshop2010-01-08 · ★ 6.5
  • 15. Skill Out2010-01-15 · ★ 6.5
  • 16. Academy City2010-01-22 · ★ 6.8
  • 17. Tsuzuri's Summer Vacation2010-01-29 · ★ 7.0
  • 18. Asunaro Park2010-02-06 · ★ 6.5
  • 19. Midsummer Festival2010-02-12 · ★ 6.5
  • 20. Poltergeist2010-02-19 · ★ 6.5
  • 21. Voices2010-02-26 · ★ 6.5
  • 22. Level 62010-03-05 · ★ 6.5
  • 23. What Is It You See in Your Eyes Right Now?2010-03-12 · ★ 7.0
  • 24. Dear My Friends2010-03-20 · ★ 7.0
A Certain Scientific Railgun S2013 · 24 ep
  • 1. Railgun2013-04-12 · ★ 6.2
  • 2. Critical2013-04-19 · ★ 6.7
  • 3. Project Radio Noise2013-04-26 · ★ 6.7
  • 4. Sisters2013-05-03 · ★ 4.4
  • 5. Project Level 6 Shift2013-05-10 · ★ 7.3
  • 6. I... Can See All of You2013-05-17 · ★ 7.0
  • 7. I... I Want to Be of Help To You, Sissy2013-05-24 · ★ 7.0
  • 8. ITEM2013-05-31 · ★ 7.0
  • 9. AIM Stalker2013-06-07 · ★ 7.0
  • 10. Meltdowner2013-06-14 · ★ 7.0
  • 11. The Vending Machine2013-06-21 · ★ 7.0
  • 12. Tree Diagram2013-06-28 · ★ 6.7
  • 13. Accelerator2013-07-05 · ★ 7.0
  • 14. The Promise2013-07-12 · ★ 7.7
  • 15. Kamijo Toma2013-07-19 · ★ 7.7
  • 16. Sisterhood2013-07-26 · ★ 7.7
  • 17. Study Group2013-08-02 · ★ 6.7
  • 18. Moving2013-08-16 · ★ 6.3
  • 19. Academic Reach Assembly2013-08-23 · ★ 4.2
  • 20. Febri2013-08-23 · ★ 6.3
  • 21. Darkness2013-08-30 · ★ 6.7
  • 22. STUDY2013-09-06 · ★ 6.7
  • 23. Silent Party2013-09-13 · ★ 6.7
  • 24. Eternal Party2013-09-20 · ★ 7.0
A Certain Scientific Railgun T2020 · 25 ep
  • 1. Super-powered (Level 5)2020-01-10 · ★ 9.0
  • 2. The Daihasei Festival2020-01-17 · ★ 8.0
  • 3. Balloon Hunter2020-01-24 · ★ 8.0
  • 4. Tampering2020-01-31 · ★ 9.0
  • 5. Trust2020-02-07 · ★ 8.5
  • 6. The Battle Begins2020-02-14 · ★ 8.5
  • 7. Auribus oculi fideliores sunt2020-02-28 · ★ 8.5
  • 8. Railgun ✕ Mental Out2020-03-20 · ★ 9.0
  • 9. Kozaku Mitori2020-03-27 · ★ 8.0
  • 10. Clone Dolly2020-04-03 · ★ 9.0
  • 11. Joining the Battle2020-04-10 · ★ 4.8
  • 12. Exterior2020-04-17 · ★ 9.0
  • 13. SYSTEM (Those Who Arrive at Heaven's Will in an Only Human Body)2020-05-01 · ★ 6.0
  • 14. Dragon Strike (Jaw of the Dragon King)2020-05-15 · ★ 9.3
  • 15. Promise2020-05-22 · ★ 8.5
  • 16. Dream Ranker2020-07-24 · ★ 4.5
  • 17. Precognition2020-07-31 · ★ 8.5
  • 18. Bust Upper2020-08-07 · ★ 9.0
  • 19. Strange Coincidence2020-08-14
  • 20. Ha Det Bra2020-08-21
  • 21. Doppelganger2020-08-28
  • 22. Scavenger2020-09-04
  • 23. Possession2020-09-11
  • 24. Diffusion2020-09-18
  • 25. My Dear Friends2020-09-25 · ★ 10.0
Season 4TBA · 0 ep

A Certain Scientific Railgun trailer

A Certain Scientific Railgun cast

View all cast →
Rina Sato

Rina Sato

Mikoto Misaka (voice)

Satomi Arai

Satomi Arai

Kuroko Shirai (voice)

Aki Toyosaki

Aki Toyosaki

Kazari Uiharu (voice)

Kanae Itou

Kanae Itou

Ruiko Saten (voice)

Minako Kotobuki

Minako Kotobuki

Mitsuko Kongou (voice)

Atsuko Tanaka

Atsuko Tanaka

Harumi Kiyama (voice)

Atsushi Abe

Atsushi Abe

Toma Kamijo (voice)

Kana Ueda

Kana Ueda

Mii Konori (voice)

Where to watch A Certain Scientific Railgun

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AI Verdict

On the Bubble42%low confidence
42%renewal
renewal probability
Verdict history35% → 42%
May 16May 31

A Certain Scientific Railgun has been off air for over five and a half years with no confirmed renewal signal, which is the single biggest concern here. The franchise remains popular and search interest is unusually high, but the long silence from the production side keeps this firmly in uncertain territory.

Live signals

2.8K watching on Traktsteady

Verdict updated 4 weeks ago

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    Frequently asked

    When does A Certain Scientific Railgun Season 4 come out?
    A Certain Scientific Railgun Season 4 has not been confirmed yet.
    Is A Certain Scientific Railgun renewed or cancelled?
    A Certain Scientific Railgun has been off air for over five and a half years with no confirmed renewal signal, which is the single biggest concern here. The franchise remains popular and search interest is unusually high, but the long silence from the production side keeps this firmly in uncertain territory.
    How many seasons of A Certain Scientific Railgun are there?
    A Certain Scientific Railgun has aired 4 seasons so far.
    How many episodes of A Certain Scientific Railgun are there?
    There are 73 episodes of A Certain Scientific Railgun across 4 seasons.
    Where can I watch A Certain Scientific Railgun?
    A Certain Scientific Railgun is available to stream on Crunchyroll, Crunchyroll Amazon Channel, Amazon Video, Apple TV Store and Google Play Movies.
    What is A Certain Scientific Railgun's IMDb rating?
    A Certain Scientific Railgun holds an IMDb rating of 7.4/10 from 2,137 votes.