Talk:Robotics;Notes/@comment-83.7.9.96-20140116004847/@comment-7888499-20150115162007

To kind of expand on the answers already given, the Robotics;Notes visual novel and anime adaptation do take place in the Steins Gate world line 1.048596% divergence where the Steins;Gate visual novel/anime end. The Robotics;Notes manga ROBOTICS;NOTES REVIVAL LEGACY takes place close to it in 1.048599%.

Some Steins;Gate characters do come up in R;N, but they are not the main focus of the story, and, unfortunately, a lot of their communications with R;N's main character are apparently left out in the R;N anime adaptation. The most notable S;G cross over is the grown up Tennouji Nae, so you could say that R;N depicts some of her "further adventures", but for the others it's more like making cameo appearances via text -you never see them-, and from what I've heard Okabe's name doesn't come up at all.

As for Chaos;Head, I believe that Chaos;Head is supposed to take place in all of the Alpha and Beta attactor field world lines. Chaos;Head came before Steins;Gate, so it does not have a divergence number shown. However, it's obvious from things such as comments that characters make in the S;G visual novel that events from C;H occured in both the Alpha and Beta attractor fields, and R;N's makes it clear that the events of C;H must have occured in the Steins Gate world line in the Beta attractor field as well. So, I wouldn't really say that the characters are alternate ones from C;H.

Further, I've heard that the new visual novel Chaos;Child, which takes place in 2015, does not show a divergence number either, but from things like Kurisu's name being mentioned, etc. it seems to take place in the Steins Gate as well.