<p>The Wikipedia entry for <a href="https://en.wikipedia.org/wiki/Steins;Gate" rel="nofollow">Steins;Gate</a> begins with the following two sentences (emphasis mine):</p>

<blockquote>
  <p>Steins;Gate (シュタインズ・ゲート Shutainzu Gēto?) is a Japanese visual novel developed by 5pb. and Nitroplus and released for the Xbox 360 on October 15, 2009. <strong>It is the second game in 5pb. and Nitroplus' Science Adventure series following Chaos;Head and was succeeded by Robotics;Notes.</strong></p>
</blockquote>

<hr>

<p>The entry for <a href="https://en.wikipedia.org/wiki/Robotics;Notes" rel="nofollow">Robotics;Notes</a> is fairly similar:</p>

<blockquote>
  <p>Robotics;Notes (ロボティクス・ノーツ Robotikusu Nōtsu?) is a Japanese visual novel developed and published by 5pb.. The game was released on the PlayStation 3 and Xbox 360 video game consoles on June 28, 2012, with a PlayStation Vita port released on June 26, 2014 under the title Robotics;Notes Elite. <strong>It is the third game in 5pb.'s Science Adventure series following Chaos;Head and Steins;Gate</strong> and is described as an "Augmented Science Adventure" (拡張科学アドベンチャー Kakuchō Kagaku Adobenchā?).</p>
</blockquote>

<hr>

<p>Finally, the entry for <a href="https://en.wikipedia.org/wiki/Science_Adventure" rel="nofollow">Science Adventure</a> reveals the following:</p>

<blockquote>
  <p>The Science Adventure series (科学アドベンチャーシリーズ Kagaku Adobenchā Shirīzu?) is a Japanese video game franchise created by 5pb. in collaboration with Nitroplus. <strong>The series currently consists of four main visual novel games; Chaos;Head, Steins;Gate, Robotics;Notes, and Chaos;Child</strong> which have each received various ports, sequels, and spin-offs, as well as various manga and anime adaptations.</p>
</blockquote>

<hr>

<p>So, yes, it is as you assumed: They're part of the same series, made by the same company.</p>

<p>As for why the developers decided to use a semicolon in the name: why not?</p>

CC BY-SA 3.0
2015-10-23T20:13:04.737Z
2015-10-23T20:13:04.737Z
Nolonar
<p>There are manga/anime called "something;something", what for? does it server any purpose for identifying it as a series? example: steins;gate, robotic;notes. </p>

CC BY-SA 3.0
2015-10-23T18:51:13.133Z
There are, afaik, only three of these (namely, Chaos;Head, Steins;Gate, and Robotics;Notes). All three of them are part of the so-called "Science Adventure" series. I find it not terribly surprising that a series of games/anime would use the same naming quirks throughout.
senshin
<tropes>
Why are these animes called so? (something;something)
# Why are these animes called so? (something;something)
Posted by: username_0 on 2015-10-23
There are manga/anime called "something;something", what for? does it server any purpose for identifying it as a series? example: steins;gate, robotic;notes.
**Tags:** tropes
> **Comments:**
> **username_1**: There are, afaik, only three of these (namely, Chaos;Head, Steins;Gate, and Robotics;Notes). All three of them are part of the so-called "Science Adventure" series. I find it not terribly surprising that a series of games/anime would use the same naming quirks throughout.  
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## 1 answers
### Answer by username_2 on 2015-10-23. Score: 4 | Accepted answer
The Wikipedia entry for [Steins;Gate](https://en.wikipedia.org/wiki/Steins;Gate) begins with the following two sentences (emphasis mine):

> Steins;Gate (シュタインズ・ゲート Shutainzu Gēto?) is a Japanese visual novel developed by 5pb. and Nitroplus and released for the Xbox 360 on October 15, 2009. **It is the second game in 5pb. and Nitroplus' Science Adventure series following Chaos;Head and was succeeded by Robotics;Notes.**

---

The entry for [Robotics;Notes](https://en.wikipedia.org/wiki/Robotics;Notes) is fairly similar:

> Robotics;Notes (ロボティクス・ノーツ Robotikusu Nōtsu?) is a Japanese visual novel developed and published by 5pb.. The game was released on the PlayStation 3 and Xbox 360 video game consoles on June 28, 2012, with a PlayStation Vita port released on June 26, 2014 under the title Robotics;Notes Elite. **It is the third game in 5pb.'s Science Adventure series following Chaos;Head and Steins;Gate** and is described as an "Augmented Science Adventure" (拡張科学アドベンチャー Kakuchō Kagaku Adobenchā?).

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Finally, the entry for [Science Adventure](https://en.wikipedia.org/wiki/Science_Adventure) reveals the following:

> The Science Adventure series (科学アドベンチャーシリーズ Kagaku Adobenchā Shirīzu?) is a Japanese video game franchise created by 5pb. in collaboration with Nitroplus. **The series currently consists of four main visual novel games; Chaos;Head, Steins;Gate, Robotics;Notes, and Chaos;Child** which have each received various ports, sequels, and spin-offs, as well as various manga and anime adaptations.

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So, yes, it is as you assumed: They're part of the same series, made by the same company.

As for why the developers decided to use a semicolon in the name: why not?
---
