The year is 2034. Beneath the ruins of post-apocalyptic Moscow, in the subway tunnels, lie the last remnants of the human population. And they are besieged by deadly threats from both outside and within.

Mutants are creeping through the corridors beneath the ruined surface... Rather than staying united against a common threat, the cities of the Metro stations are in the midst of a battle for the ultimate weapon - a mad device from the D6 military vaults. The civil war is devastating and could wipe humanity off the face of the earth forever. In the game, you take on the role of Artyom, burdened by guilt but driven by hope. You hold the key to our survival - the last light in our darkest hour...