Metro: Last Light is a 2013 first-person shooter video game developed by 4A Games and published by Deep Silver. A sequel to the video game Metro 2033 and the second installment in the Metro series, its story follows Artyom, a young soldier living in the Moscow Metro after a devastating nuclear war. Tasked with finding the mysterious Dark Ones, Artyom must venture to different parts of the metro system, and the surface filled with radiated gases, and fight against different factions and mutated monsters. The game improves on various gameplay mechanics of 2033, and introduces elements such as weapon customization.