Faded Russia (GotW x Metro 2033)

"An apocalyptic war on a grand scale has devastated the surface of the Earth, leaving deadly radiation and biological weapons that have changed fauna into dangerous mutants. The Moscow Metro, which was planned from the beginning to be a giant underground air-raid shelter, became the last refuge of humanity. The Metro system is made up of subway lines. Each line has its own amount of stations, in which live Moscow's survivors of the nuclear holocaust. Each station has its own leader, customs, and even political ideology. Every station, however, has one thing in common, survival. The tunnels are a source of constant dangers - radiation, mental threats, bandits and mutant predators take the lives of the many of those people who venture between stations to trade or travel."