Steins;Gate: Linear Bounded Phenogram

Linear Bounded Phenogram is a visual novel in which the player advances through text and dialogue to read through several short stories; unlike previous entries in the Steins;Gate series, which let the player affect the flow of the story by sending specific messages from the protagonist's phone, the plot of the individual chapters in Steins;Gate: Linear Bounded Phenogram is not influenced by player input, barring the exchange of different e-mail messages with other characters.

In the iPhone version of the game, the player picks up and puts down the in-game phone by holding the phone they are playing on vertically or horizontally, respectively.

Linear Bounded Phenogram is a spin-off from Steins;Gate, consisting of ten side stories set in different realities, some of which are similar to the one in the original game, and some which are very different. Two of the stories follow Rintaro Okabe – the player character in the original Steins;Gate – while the rest follow other characters.

Linear Bounded Phenogram was developed by 5pb., and was produced by Tatsuya Matsubara, with character designs by Huke. 5pb.'s CEO Chiyomaru Shikura wrote the game's theme song, "Phenogram", which was performed by Ayane. The project started with the concept of a Steins;Gate spin-off focusing on each character individually, with a more serious tone than the earlier spin-off Steins;Gate: My Darling's Embrace. Unlike the original Steins;Gate, where Shikura came up with the story himself, the story of Linear Bounded Phenogram was crafted by a group of writers: The script was written and supervised by Science Adventure series regular Naotaka Hayashi together with guest writers Baio Shimokura, Masahiro Yokotani, Kiyomune Miwa, Teru Arai, Shogo Sakamoto, Masashi Kigasawa, Toru Yasumoto, Kougetsu Mikaduki, Keiji Akatsuki, and Kotaro Uchikoshi, who each wrote one scenario.

The decision to let new writers work on the game came from when Shikura was working on the anime adaptation of Steins;Gate, and he realized that the game's world was already fully conceived, which meant that he could let other writers who understand the world work on Steins;Gate projects, bringing new ideas into it. Matsubara contacted people who had been involved with different Steins;Gate media and were knowledgeable on the series, and the writers themselves picked which of the main characters they wanted to write about on a first-come-first-served basis. Matsubara said that this resulted in them getting to work on characters they liked and were good at portraying.

The game has received widespread critical acclaim from multiple publications, who and enjoyed the use of multiple viewpoints in the story. Richard Eisenbeis at Kotaku said that the game, like other Steins;Gate games, has excellent art. He found it interesting to follow characters other than Okabe and seeing their thoughts, and enjoyed how they received a lot of character development. Famitsu's writers also enjoyed the multiple viewpoints, particularly that of the character Mayuri Shiina, and gave the game their "Gold Hall of Fame" award.

Patrick Gann of RPGFan enjoyed the game's opening themes, particularly "Phetaritette Encounter", the opening for the PlayStation Vita version, which he said was the most musically interesting piece by Ayane in the music album The Sound of Steins;Gate Complete. During the game's debut week, the PlayStation 3 and Xbox 360 versions were the fifth and sixteenth best selling games in Japan with 34,292 and 8,821 copies sold, respectively; the Xbox 360 version dropped off the top 20 chart the following week, while the PlayStation 3 version dropped to nineteenth place, selling an additional 5,144 copies for a grand total of 48,257 copies sold. jp reported that the standard and limited editions of Steins;Gate Phenogram were their ninth and twentieth best selling Xbox 360 games of the year, respectively.