Some games resist being explained in a straight line, and Linear Bounded Phenogram is one of them. Ask me what it’s about and I want to answer with a shape instead of a sentence. So here’s the honest version: what I actually know after finishing it, laid out plainly rather than dressed up as a tidy pitch.
The setup is a series of detours rather than a single road. Instead of following one protagonist through one continuous plot, the game hands you ten short stories, each one dropped into a different point along the timeline of events from the original Steins;Gate. Some sit on world lines that barely resemble the one you remember. Some stories sit close enough to familiar events that you’ll recognize the shape of a scene before it fully unfolds. Others wander far enough from what you know that they feel closer to speculative fiction using the same cast.
Visually, Linear Bounded Phenogram leans hard on continuity with the original. Character designer Huke returns to draw the cast, and a lot of the sprite work and backgrounds are reused wholesale from Steins;Gate. Several stories still dress characters in new outfits and place them in settings the mainline game never visited. The CG illustrations built specifically for this release hold up well against that reused material, giving a handful of scenes a level of visual attention that pure sprite-and-background scenes don’t get.
You pick which story to read through something called the Phenogram Viewer, a menu screen developed by 5pb. It lists each available scenario alongside the character whose perspective it follows and a small numerical divergence value tied to that world line. There’s no need to hunt down a specific choice sequence to unlock content here. Everything opens up automatically as you progress, which is a real departure from the original Steins;Gate’s reliance on replying to emails in exact patterns to reach different routes. The email exchanges are still present in a lighter form, letting you trade optional messages with characters, but they no longer gate story access the way they once did.
Two of the ten scenarios put you back in Okabe’s head, including one called Dr. Jekyll on Lines and another called Three Contrapasso About the Abduction. The rest hand the narration over to the people usually standing beside him. Daru gets a story titled Bird Singing in Cage. Yugo Tennouji, the lab’s landlord, gets one called A Strange Building Filled with Love. Faris NyanNyan has Superhero Chat-Noir, Luka Urushibara has Hermaphroditus in Labyrinth, Mayuri Shiina has Eternal Polaris, and Moeka Kiryu has Quantum Excited in Coma.
Ten different writers handled the scenarios individually. The group includes Baio Shimokura, Masahiro Yokotani, Kiyomune Miwa, Teru Arai, Shogo Sakamoto, Masashi Kigasawa, Toru Yasumoto, Kougetsu Mikaduki, Keiji Akatsuki, and Zero Escape creator Kotaro Uchikoshi. All ten worked under series writer Naotaka Hayashi’s supervision.
Full Japanese voice acting carries across every scenario, with the original cast reprising every role rather than handing anything off to a fresh lineup. Asami Imai returns as Kurisu, Kana Hanazawa as Mayuri, Yū Kobayashi as Luka, Haruko Momoi as Faris, Saori Goto as Moeka, Tomokazu Seki as Daru, and Masaki Terasoma as Tennouji. Hearing these performers slip back into characters they’d already spent years with gives even the lighter scenarios a level of comfort and familiarity that a recast never could have matched.
That structure is where the writing both gains and loses something. Handing each character over to a different author means every story carries its own rhythm and priorities rather than one voice stretched across all ten. A few of them dig into corners of a character’s interiority that the mainline game never had room for. It also means quality swings noticeably from one scenario to the next, since a writer clearly invested in one character’s inner conflict sits right next to a lighter, more comedic entry with less on its mind. Reading them back to back makes the seams between authors obvious in a way a single-writer anthology usually avoids.
None of that undercuts what the format is actually built to do, which is let you sit inside a perspective you only ever watched from the outside before. Stepping into a story built around Moeka, a character the original game keeps at arm’s length through most of its runtime, reframes decisions you already watched Okabe react to from across a room. You’re not getting new plot so much as new interiority, the private reasoning behind choices whose consequences you already lived through once. That reframing lands harder the better you already know the source material, since the emotional charge comes from recognizing a moment rather than discovering one.
Composer Takeshi Abo returns as well, expanding the score well past a simple reuse of the original soundtrack. New pieces get written for specific scenarios, and Abo goes as far as giving 4°C, a side character who barely registers musically in the mainline game, a dedicated theme of her own. The opening song, titled Phenogram, was written by series creator Chiyomaru Shikura and performed by vocalist Ayane, who also lent her voice to earlier Steins;Gate material. It sits as one of the stronger vocal themes across the whole Science Adventure catalog, carrying real weight against a soundtrack it has to compete with.
The version I’m covering is the English localization bundled with Steins;Gate Elite on PC, released in February 2019 through Spike Chunsoft. It can’t be bought as a standalone product on this platform, only unlocked as part of purchasing the larger Elite package. The PC release also carries a noticeably rougher font and text layout than the rest of the bundle. That rendering quirk doesn’t show up on the console versions of the same release. Some Japanese text embedded directly into CG art and backgrounds was also left untranslated, a small but noticeable gap in an otherwise fairly thorough localization pass. None of that touches the writing itself, but it’s worth knowing going in in case sharper text rendering matters to you.
This is very much a companion piece rather than a starting point, and the game itself assumes you’ve already finished the story it’s built around. Trying to read any of these ten scenarios without that context would mean losing most of what makes the reframing work, since the entire format depends on already knowing where these characters end up. For anyone who has already spent time in this lab with these people, though, it’s a rewarding way to spend more time there.
Verdict
Linear Bounded Phenogram succeeds at exactly what it sets out to do: hand ten different writers a familiar cast and let them dig into corners the original story didn’t have room for. The tonal inconsistency between scenarios keeps it from being a uniformly strong read, and it offers nothing at all if you haven’t already finished the game it’s built on top of, but for anyone who has, watching these characters think for themselves is worth the trip.
