It is the year 2034.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.As Artyom, burdened by guilt but driven by hope, you hold the key to our survival - the last light in our darkest hour...