The Universe of Metro 2033 (Russian: Вселенная Метро 2033) is a series of short stories, novellas, and novels, spanning a variety of genres ranging from post-apocalyptic action to romance, written by several different authors. Despite being written by various authors, the stories of the extended Metro series are all supported by Dmitry Glukhovsky and advertised on the official Metro website. Although it began in Russia, the project enjoys plenty of popularity in Poland, Hungary, and Germany as well.
All of these stories share the same setting – the fictional world in Glukhovsky's original novel, Metro 2033. Although Metro 2033 described only Glukhovsky's vision of a post-apocalyptic Moscow, the books of the extended universe take place in a wide variety of different areas. Among these are: Moscow, St. Petersburg, Leningrad Region, Nizhny Novgorod, Tver Region, Moscow Region, Kola Peninsula, Kiev, Rostov-on-Don, Samara, Novosibirsk, Yekaterinburg, and the Kaliningrad region. Some of the books in the series are set in other locations outside of Russia, such as: Belarus, Britain, Italy, Poland, and Antarctica.
Most of the written works of the series were originally released in Russia. Some books from the Universe of Metro 2033, like Piter, Towards the Light and Into the Darkness, have been translated to a number of European languages, such as German, Polish and Swedish. Prior to 2014 and the video games Metro 2033 and Metro: Last Light, no books in the series were released in a country where English is the prominent language.