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.
Mutants stalk the catacombs beneath the desolate surface, and hunt amidst the poisoned skies above. But rather than stand united, the station-cities of the Metro are locked in a struggle for the ultimate power, a doomsday device from the military vaults of D6. A civil war is stirring that could wipe humanity from the face of the earth forever.
The game picks up after the "bad" ending from Metro 2033, in which Artyom delivers a devastating attack on the mysterious supernatural race known as the Dark Ones. The station-cities of the Metro struggle for power using weapons found in D6.The player follows Artyom, the main protagonist from Metro 2033, as he searches for the mysterious "Prisoner", the supposed “key to survival – the last light in our darkest hour…”