Steins;Gate
Set in Akihabara in 2010, self-styled mad scientist Rintaro Okabe accidentally invents a time machine (the Phone Microwave) and traverses world lines through D-Mails and time leaps. He struggles to escape a loop in which his childhood friend Mayuri dies, ultimately seeking the Steins Gate world line.
- Genre:
- SF / タイムトラベル / サスペンス / 恋愛
- Medium:
- game / Anime / Manga
Steins;Gate — Timeline20 events
Okabe Discovers Makise Kurisu's Apparent Corpse at Radio Kaikan
During a lecture on time travel at Radio Kaikan in Akihabara, Okabe finds Makise Kurisu collapsed in a pool of blood. Simultaneously, a text message he sends to Suzuha is received hours in the past, marking the first sign of world-line deviation.
— Game chapter 1; anime ep. 1.
Future Gadget Lab Successfully Sends the First D-Mail via the Phone Microwave
At the Future Gadget Lab run by Okabe, Daru, and Mayuri, a modified microwave linked to a mobile phone — the Phone Microwave (provisional name) — successfully sends an email to the past (a D-Mail), marking the starting point of their time-machine research.
— Game chapter 2; anime eps. 2–3.
Makise Kurisu Joins the Future Gadget Lab as the Fourth Lab Member
Genius scientist Makise Kurisu visits Okabe's lab out of curiosity about the Phone Microwave's principles and becomes its fourth member. Her participation accelerates analysis and improvement of the device, advancing the team's research in earnest.
— Game chapter 3; anime eps. 3–4.
Growing Lab Membership and Repeated D-Mail Experiments Shift World Lines into the Alpha Attractor Field
Suzuha Amane, Moeka Kiryu, Lukako Urushibara, and Faris join as lab members. As D-Mail experiments alter each person's past, the world-line divergence rate gradually shifts the convergence into the alpha attractor field controlled by SERN.
— Game chapters 4–7; anime eps. 5–11.
Daru Hacks the SERN Database and Reveals the Truth of the Jelly-Man Experiments
Okabe's group discovers through hacked SERN data that the organization has secretly conducted time-machine experiments for years, with failed subjects turning up as grotesquely deformed 'jelly-men.' They also learn that SERN has become aware of the Phone Microwave and is surveilling the lab.
— Game chapters 5–6; anime eps. 9–10.
The Lab Obtains an IBN 5100 and Attempts to Decrypt SERN's Database
The vintage IBN 5100 computer from 1975 is identified as the only machine capable of decrypting old codes within SERN's database. Okabe pursues it, with its location varying across world lines and its recovery entangled in the D-Mail experiments.
— Multiple game chapters; anime eps. 6–12.
SERN's Rounders Raid the Lab; Mayuri Is Abducted and Killed
A SERN Rounder unit, having obtained information about the lab through Moeka Kiryu, raids the Future Gadget Lab. Mayuri is captured and killed, and Okabe is confronted for the first time with the worst possible reality: the death of a friend.
— Game chapter 8; anime ep. 12.
The Time Leap Machine Is Completed; Okabe Enters a Loop to Prevent Mayuri's Death
Designed by Kurisu, the Time Leap Machine (memory-transfer type) is completed, enabling Okabe to send his consciousness into the past. However, the alpha attractor field's convergence force causes Mayuri to die again and again in different ways, and Okabe experiences the despair of being unable to save her no matter how many times he loops.
— Game chapters 8–9; anime eps. 12–17.
Suzuha Amane Is Revealed to Be a Time Traveller from the Future
Suzuha is revealed to be a warrior sent from the year 2036. She arrived by time machine (satellite type) and explains that she ended up in the alpha attractor field rather than the beta one — where SERN's dystopian rule is guaranteed. She also shares that World War III has occurred in one version of the future.
— Game chapter 9; anime eps. 17–18.
Okabe Attempts to Cancel All Past D-Mails to Escape the Alpha Attractor Field
Realising that saving Mayuri requires moving the divergence rate out of the alpha attractor field, Okabe launches an operation to cancel each D-Mail sent by the lab members one by one. As each member's personal past is rewritten and restored, Okabe undergoes profound inner conflict.
— Game chapters 10–12; anime eps. 18–22.
All D-Mails Cancelled; the Beta World Line Is Reached, but Kurisu's Death Proves Inevitable
Cancelling all D-Mails shifts the divergence into the beta attractor field and saves Mayuri. However, in the beta world line Kurisu's death is a fixed convergence point, and Okabe discovers that his very first message — his report that Kurisu had died, sent back in the past — is the key to this convergence.
— Game chapter 12; anime eps. 22–23.
In the Beta World Line the Future Avoids SERN's Dystopia but Faces World War III
Information from Suzuha and a future Okabe (signing as FB — Future Okabe) reveals that in the beta attractor field, international conflict over time-machine technology intensifies after 2015, culminating in World War III in 2025 with billions of casualties. It becomes clear that every available world line leads to catastrophe.
— Game chapters 12–13; anime eps. 23–24.
A Video Letter from the 2025 Okabe Arrives, Pointing the Way to Steins Gate
A video letter recorded by the future Okabe (FB) arrives through Suzuha. It reveals that the world remains in a catastrophic state in 2025, but that a world line where both Mayuri and Kurisu can be saved — which future Okabe calls Steins Gate — exists, prompting Okabe to resolve to find it.
— Game chapter 13; anime eps. 23–24.
Kurisu's Death Is Revealed to Have Been Stabbed by Her Father, Shouichi Makise
The truth behind the death Okabe witnessed at Radio Kaikan is that her father, Shouichi Makise, stabbed Kurisu to steal her time-machine thesis. It also emerges that blood left by Okabe himself was present at the scene, meaning his own intervention is part of what shaped the event.
— Game chapter 13; anime ep. 24.
Okabe and Suzuha Execute a Mission to 1975 to Secure the IBN 5100
As a prerequisite for reaching Steins Gate, Okabe and Suzuha travel by satellite time machine to Akihabara in 1975. They execute Operation Schooldays: entrusting an IBN 5100 to the father of the young Faris, guaranteeing its recovery in 2010.
— Game chapter 13; anime ep. 24 (including flashback).
Okabe Decides to Undo Kurisu's Death and Experiences Their Farewell
Reaching Steins Gate requires that Kurisu's death remain a perceived reality while Okabe escapes safely. He confides the full truth to Kurisu, affirms the worth of the time they shared, and resolves to accept the farewell. The emotional core of their relationship is portrayed.
— Game chapter 14; anime ep. 24.
Okabe Executes 'Operation Altair' to Fake Kurisu's Death
As the operation to reach Steins Gate and save both Mayuri and Kurisu simultaneously, Okabe intervenes at the scene of Shouichi Makise's stabbing to stage the appearance of Kurisu's death. The first attempt fails and Okabe inadvertently wounds Kurisu, but through repeated time leaps he establishes the precise sequence of steps needed.
— Game chapters 14–15; anime eps. 24–25.
Operation Altair Succeeds; the World-Line Divergence Meter Reaches Steins Gate
Successfully saving Kurisu from her father's stabbing while maintaining the appearance of her death, Okabe observes the divergence meter reach the Steins Gate world line — the one in which both Mayuri and Kurisu survive. This world line averts both SERN's dystopian rule and the World War III future.
— Game chapter 15; anime ep. 25 (finale).
Okabe and Makise Kurisu Reunite in Akihabara in the Steins Gate World Line
Because the staged death succeeded, Kurisu is alive in the Steins Gate world line. She has no memory of Okabe, but their chance reunion in Akihabara — and the moment of mutual recognition — brings the main story to its close.
— Game chapter 15; anime ep. 25 (finale).
Suzuha's Mission to Return to 2036 from the Steins Gate World Line Is Indicated
Even in the Steins Gate world line, Suzuha knows her mission requires returning to the year 2036. How the future she reaches from this world line unfolds connects to the sequel Steins;Gate 0, hinting at how the time-loop structure is finally closed.
— Post-finale epilogue of anime ep. 25; connection to Steins;Gate 0.
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