Seasons & Episodes
Season 1
24 episodes
E01
Turning Point
At a time travel conference, scientist Rintarō Okabe encounters a mysterious woman who claims they met 15 minutes before and is then brutally stabbed.
E02
Time Travel Paranoia
Okabe is visited by a self-proclaimed time traveler and conducts the first successful test of his microwave-based time machine -- using a banana.
E03
Parallel World Paranoia
Okabe learns that his microwave will send messages to the past, and discovers a shocking secret when he hacks into the SERN network.
E04
Interpreter Rendezvous
John Titor tells Okabe that he can't fully decode the SERN files without an IBN 5100 computer, a rare model that he finds difficult to track down.
E05
Starmine Rendezvous
Okabe uncovers the gruesome details of SERN's time travel experiments and gets a warning from Suzuha about Kurisu.
E06
Butterfly Effect's Divergence
Okabe experiments with sending texts, now called "D-Mails," into the past and unsuccessfully prevents Moeka from learning the true nature of his work.
E07
Divergence Singularity
When Okabe successfully alters time with a D-Mail, the effects lead Titor to believe that Okabe may save the world from its dystopian future.
E08
Chaos Theory Homeostasis I
Okabe continues to experiment with D-Mail, resulting in world shifts that only he can remember -- and an attempt to have Ruka reborn as a female.
E09
Chaos Theory Homeostasis II
One of the world shifts result in the disappearance of the critical IBN 5100 computer, while another changes the physical properties of the city.
E10
Chaos Theory Homeostasis III
Okabe receives a threatening text message, and Suzuha, unable to find her father, returns home without saying good-bye.
E11
Dogma in Event Horizon
When Okabe learns that a TV in the repair shop is linked to the ability to send D-Mail, Kurisu believes it can be used to send emotions through time.
E12
Dogma in Ergosphere
Kurisu completes her new time machine, which can transmit emotions back in time, and Suzuha fears that she's fated to become a spy for SERN.
E13
Metaphysics Necrosis
Okabe uses the time leap machine to attempt to prevent Mayuri from being killed, but he quickly learns that the mission isn't as simple as he thought.
E14
Physically Necrosis
While Okabe is devastated by his failure to save Mayuri, Kurisu explains it may not be possible, and Suzuha makes a startling revelation.
E15
Missing Link Necrosis
Suzuha reveals how SERN's plan will lead to a totalitarian government by 2036; Okabe and the rest of the team set out to find Suzuha's father.
E16
Sacrificial Necrosis
Okabe finds Suzuha's father, but his attempt to reunite them results in tragedy that he sets out to correct with the time leap machine.
E17
Made in Complex
When he discovers that Mayuri is still fated to die, Okabe works with Kurisu to reverse the effects of D-Mails that have irreversibly changed time.
E18
Fractal Androgynous
Okabe tries to convince Ruka that she was originally a male and that only by undoing the D-Mails that made the switch can they save Mayuri's life.
E19
Endless Apoptosis
When Okabe discovers that Moeka has committed suicide, he attempts to undo the act through D-Mails, leaving Moeka feeling betrayed.
E20
Finalize Apoptosis
Okabe locates the missing IBN 5100 and uncovers the identity of the mysterious "FB" but realizes that getting the computer back means losing Kurisu.
E21
Paradox Meltdown
Okabu hopes to keep Kurisu alive by not hacking with the IBN 5100, but he soon realizes that either she or Mayuri must die in the beta world line.
E22
Being Meltdown
Kurisu persuades Okabe to let her die and Mayuri live. As Okabe destroys the phone microwave, he gets a critical message from Suzuha.
E23
Open the Steins Gate
Okabe travels back in time with Suzuha to just before Kurisu's death to witness the dawn of the time machine arms race and the spark of World War III.
E24
Achievement Point
Okabe undergoes a personal sacrifice in an attempt to bring the world lines back into order and save the lives of his partners.
Cast
Kana Hanazawa
as Mayuri Shiina
Mamoru Miyano
as Rintarou Okabe
Asami Imai
as Kurisu Makise
Tomokazu Seki
as Itaru Hashida
