After Metro 2033 and Metro Last Light the Ukrainian 4A Games is planning to publish next game from the series, Metro Exodus, in 2018. In June 2017 first gameplay trailer was presented and it looks like the next game could use slogan "Metro, this time without the boring underground bits".
The 2005 Dmitry Glukhovsky published a novel called Metro 2033 that was telling the story of young man, one of the survivors of nuclear war that left Moscow devastated, who sets into the dark tunnels of the metro system to save the people he lives with on one of the stations. The basic concept was rather simple - the surface was destroyed and radioactive, so the only place where people could have survived were the subway stations.
Sci-Fi Blog - even though science fiction started before 20th century a lot of people don't realize how vast and rich this genre really is. In United States many people associate sci fi with the Marvel comics and superhero stories, while the core of the science fiction is in the reaching for the future and exploring not only space, but also ourselves.