Steins;Gate: Linear Bounded Phenogram

Steins;Gate: Linear Bounded Phenogram/Phenogram of Linear Restraint (STEINS;GATE 線形拘束のフェノグラム Senkei Kousoku no Phenogram?) a visual novel released on April 25, 2013 containing a mixture of scenarios set during and after the original visual novel's story-line, but in different world lines.

"The title is an apparent reference to 'linear bounded automaton', a limited form of the Turing Machine conceptin computer science."

Story 1: Dr. Jekyll on lines (Okabe)
Takes place in α0.337199%. Depicts Okabe playing Alpacaman, trying to help people around him with time leap machine and D-Mail the time after Mayuri's death. By playing the role of Alpacaman, Okabe was able to meet Mayuri again, that is however, just delusions. Everyone was aware with Okabe's odd behavior - constantly asking where Mayuri is and reluctant to accept Mayuri's death as a fact. Exactly a year passed since Mayuri's death, Kurisu who was working with SERN on time machine visited the lab and asked if Okabe wanted to assist her with SERN. After thinking hard and staring at the stars on the roof of Radio Kaikan, Okabe decided to time leap back to save Mayuri. The Alpacaman suit that he sewed himself was burnt on the roof after he bid his last farewell to Mayuri.

The alpaca game that Okabe played plays a huge role in this story.

Story 2: Bird Singing in Cage (Daru)
Takes place in δ3.019430%. Depicts how Daru met his future wife, Yuki Amane on Comima by accident. Yuki was cosplaying Chopstick girl, she was mistaken as Moeka by a rounder who was pass Moeka their terrorist plan on a note. After they realized their mistakes, the rounders imprisoned Yuki on an abandoned underground train station. Yuki posted a set of weird codes that the rounder has on their notes on @channel, hoping someone would come to save her. Daru gave up on cracking the code and then he decided to backtrack her phone with the @channel info. He found that she was kidnapped when Yuki's phone led him to Radio Kaikan and the phone was on rounders' possession instead.

Suzuha saved him and told him that him and Yuki were her parents. They cannot use the Telephone Microwave to save her as the 42 '' CRT was malfunctioned. Daru managed to crack the code, which turned out to be numbers on sewer covers. Suzuha went to send the CRT to service center with Tennouji Yuugo while Daru, Okabe and Kurisu start searching for the particular sewer. He entered the sewer which led him to the underground train station to look for Yuki alone after asking Moeka, who appeared to be there to report to the police. Moeka handcuffed Daru after he located Yuki and she put the bombs in the underground station in countdown. After decided not to frighten Yuki by telling her that there are bombs right next to them, he turned down all the help offers from police and Okabe as the timer is less than 10 mins left. With less than 5 mins left, Suzuha contacted Daru and asked Daru to not give up hope. She reached the scene with less than 45 secounds left, she then grabbed the box of bombs and ran deeper into the sewer. Daru and Yuki both survived, while no news regarding Suzuha has been heard, Kurisu mentioned that as the Satellite on the Radio Kaikan disappeared, Suzuha should be fine. Then, Daru continues his Comima looting.

Story 3: Vermilion Sooteer (Kurisu)
Takes place in α0.328403%. Though written drawn out as "Sooteer" (ソーテール), the title is likely supposed to mean the Greek epithet "Soter".

Depicts Kurisu time leaping to Aug 13th to motivate Okabe so that he time leaps again into the past and seek help from her.

After numerous failed timeleap attempts, Okabe tried to destroy the timeleap machine but stopped by Kurisu, he then ran to the front of UPX complex and sat there, giving up on saving Mayuri. Faris found him and brought him back to the lab,where Daru and Mayuri were no where to be seen.There were blood stains on the flood with no one in the lab, Kuroki suggested them to go to Faris's place for safety. Faris and Kurisu seek help from Akiha Yukitaka. In the process of explaining the situation to Yukitaka, Kurisu learnt that he and her father, Prof Nakabachi were friends

Story 4:  Ghosting Rendezvous (Suzuha)
Takes place in α0.337337%. Depicts how Suzuha in alpha world line gets support from 2 other Suzuha from a different attractor field world line. The background of the story is very similar to the α0.337187% world line of the original story which took place after Okabe stop Suzuha from leaving. After discovered the time machine had broken Suzuha was hesitating over her priorities between her mission and friendship resulting in seeing two ghosting figments of herself from the Beta attractor field world line and an unknown peaceful world line. Later they refer to each other as Alpha, Beta and Omega. Despite their presence, only Alpha Suzuha can prove Beta's and Omega's existence. To other people they were unable to be seen nor heard, but can see their interaction with the environment. They were treated as ghost by people around Alpha.

The Beta Suzuha from the Beta attractor field is wearing military outfit, and feels crisp and serious from Alpha Suzuha's perspective. Omega version of Suzuha who wear a maid outfit is a spoiled kid living a peaceful life with no knowledge of time travel. The world line where Omega Suzuha came from wasn't mentioned in the story.

Suzuha learns early on that Daru is her father due to Omega revealing it to her. Since Beta have more experience at fixing the time machine she was in charge of fixing it. When Beta founds out that Alpha Suzuha's Time Machine can only travels back to the past. Beta told Alpha that you should go spend more time with dad instead of fixing the time machine, so she sent Alpha to shop for replacement parts with Daru. Later Daru helps Beta with the repairing, though they were unable to speak to communicate directly, Beta and Daru exchanged Mails.

While Daru is helping Beta to fix the time machine Alpha Suzuha went back to her part time job. When Alpha Suzuha talk to Yuugo she accidentally been told about the fate of her future that Suzu Hashida had already passed away. She decided not to ask about how herself die. After she finished her part time job she meet Kurisu. During their conversation she found out Kurisu isn't an evil person she imagined before traveled to 2010. They also discovered both of them are similar in the sense that both of their father had devoted most of their life for the time machine.

In the next morning, Alpha Suzuha came to check the time machine repairing progress. Beta apologized to Alpha Suzuha that Daru had accidentally also found out that this time machine can only travels back to the past. Alpha Suzuha then ask Daru to show her around the city. While Daru is resting in the laboratory Omega suggested to Alpha that this is like a date in some way, and she should change her outfit to something more cute for this special occasion. Alpha Suzuha and Daru have a great time while they spend their afternoon together. At the end of their "date" Daru reminded himself about the time machine, and the fact that Suzuha will never be able to come back if she traveled back to 1975. This leads to an emotional conversation. Alpha Suzuha finally understand her father isn't an emotionless and rational person she always imaging he is, but someone with human emotion just like herself. The reason why her dad lock himself up and didn't meet with Suzuha in the future is not only because it is only way he can finished the time machine without been discovered by SERN and give the humanity its last hope, but also he already knew that her daughter will meet with him back in year 2010. Alpha Suzuha then lie to Daru that maybe the grown up version of her is still alive, and this is merely a small departure, but Daru didn't look convince by these words.

On their way back Kurisu shown up. Alpha Suzuha thanks Kurisu for her effort to make sure there is nothing inappropriate happened between her and Daru. Kurisu than figure out that Suzuha is going to leave tonight, and she won't be able to come back afterward. Suzuha was surprised that Kurisu was truly care about her. Suzuha then regret that she should found out about this earlier, and shouldn't superimpose her original impression on Kurisu. She than repeated the same lie to Kurisu about this is just a small departure.

When the night falls, Alpha Suzuha come to the time machine with the other two versions of herself. After finished the final checkup of the time machine. Beta Suzuha suddenly suggest maybe she can go to the past instead, so Alpha Suzuha can stay here with dad. Alpha Suzuha feels happy for Beta Suzuha to make such gesture, but she declined her suggestion saying that she is going to the past for herself. When the two ghosting figments become increasingly unstable she found out that both Beta and Omega are worrying about her. She realized even though these three version of herself looks and act different from the outside, but deep inside their hearts they are all still Amane Suzuha. When the two ghosting figure began fading Alpha Suzuha thanks the Omega for her suggestion for the outfit, so she can hear dad said she is cute. She also said to Omega that both she and Beta are trying hard so we can reach you. (which strongly implied that Omega is from "The Steins Gate" world line where the True End of the main plot occurs.) She realized the existence of Omega mean there is a peaceful world line out there thus their goal actually exist, and she is literately their hope. As the final request Alpha Suzuha ask Omega "Don't truble Mom and Dad too much OK?", and she is counting on her. After both of the figures faded and Suzuha thanks the Beta for fixing the time machine, She went inside the time machine and activated it, and the scene fade to black.

Suzuha found herself in bed, and hear her mother telling her to wake up. Usually she would try to stay in the bed for as long as possible, but this time she don't feel like it. The word "Don't trouble Mom and Dad too much OK?" was still in her mind. Thus she decide to get out of her bed. Her mother was surprise and happy that Suzuha wake up by herself. Suzuha decided for the first time to offer washing the dish after she finished the breakfast which make her mother really surprised and at the same time looked really proud too. The story then ended.

Story 5: A Strange Building Filled of Love (Tennouji Yuugo)
Takes place in δ3.386019%. Tennouji Yuugo won a lottery and decided to use the prize money to repair or rebuild the Building where there exists the CRT workshop and the Future Gadget Lab, to make Nae happier. Lately Nae seemed lonely so Yuugo tries to cheer her up with the money he got. He asks the 2nd floor Labmems for opinion about rebuilding or not, but in the end he decided to rebuild it by himself.

It took a year for the building to be done, but somehow later the lab messed up in someway. And Nae still couldn't clearly tells her father what is missing. All she remembered there was a Mountain Bike in front of the building. Indirectly mentioned, Nae's loneliness is due too Suzuha left the workshop. And with the mess spent all the lottery prize, it was fixed with a D-Mails. And the last D-Mail sent tells Yuugo that tIme will cure that loneliness within Nae. So in the end he rebuild it but it stood with the same look as before. And turns the vacant 3rd floor as a Cat themed Playground.

Another timeskip, a decade and a few years later. Nae befriended a little girl and usually plays in the 3rd floor. The little girl apparently keeps coming there by bike. Nae braids the little girl's hair and Yuugo takes a photo of them.

Story 6: Super hero Chat-noir (Faris Nyannyan)
Takes place in δ3.030493%.

Story 7: Hermaphroditus in Labyrinth (Ruka)
Takes place in β1.049326

Story 8: Eternal Polaris (Mayuri)
Takes place in α0.571046% and Ω-0.195284%.

Story 9: Quantum excited in Coma (Moeka)
Takes place in α0.509736%.

Story 10: Three Contrapasso About The Abduction (Okabe)
Takes place in ε4.456441, 4.456442, 4.493624, 4.493623, 4.530805, 4.530806%.

Story 11: Lunar Halo Bifröst (Tennouji Nae)
Takes place in α0.337161.

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