As Artyom, burdened by guilt but driven by hope, you hold the key to our survival – the last light in our darkest hour… A civil war is stirring that could wipe humanity from the face of the earth forever. But rather than stand united, the station-cities of the Metro are locked in a struggle for the military vaults of D6 - a gigantic bunker complex rumored to contain food, medicine, weapons. Mutants stalk the catacombs beneath the desolate surface, and hunt amidst the poisoned skies above.
Beneath the ruins of post-apocalyptic Moscow, in the tunnels of the Metro, the remnants of mankind are besieged by deadly threats from outside – and within.