Serial Code for Metro Last Light game activation on your Steam Account.
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. As Artyom, burdened by guilt but driven by hope, you hold the key to survival – the last light in a darkest hour.
Bonus: Buy Metro Last Light and get free copy of Metro 2033.
You can download the game client through Steam only.