a list of all rooms, recently active rooms first
General discussion for Health Stack Exchange: http://health.stackexchange.com
Mostly randomly generated noise. – http://crypto.stackexchange.com
Good questions raised here should hit the main site too! Fudge dice userscript: http://stackapps.com/questions/6150/
Chat room for Travel.SE http://travel.stackexchange.com
You can get feedback for questions, answers and comments, if you are honestly receptive to feedback.
For playing the game Contact, where one person tries to "defend" a word against being guessed and others try to "attack". See https://puzzling.meta.stackexchange.com/a/5992 for more info.
A place to talk with friends from the EE community about vacuum nanotubes ... and beer..
Всевозможные политические баталии и демагогия на русском языке. Правила: http://bit.ly/2FWOUJ0.
Learn and teach, questions about both golfing and general coding. For chatbot info, enter: )about
where you may feel free to do your calculus
A chat room for developing polyglots, especially for [this PPCG challenge](http://codegolf.stackexchange.com/q/102370/62131).
Where you can play with chat features (except flagging) and chatbots without upsetting anyone.
Practice your Jelly :) To be a student, request access. Rules and stuff are here: https://golfingsuccess.github.io/jelly-hypertraining/
Эта комната посвящена обсуждению C#: всё, что не подходит в формат вопроса.