It's been more than three years since Metro 2033 launched, so developer 4A Games has had quite a bit of time to polish and tweak its follow-up, Metro: Last Light. The result is a shooter full of chilling atmosphere and hair-curling intensity, but plagued with niggling head-scratching moments and glitches that keep it from being brilliant.

The sequel returns you to post-apocalyptic Moscow where nuclear winter and radiation still keep everyone underground in the world's largest fallout shelter, the city's subway system. The player returns as Artyom, the hero of the original game who is still on the trail of the mutant, but sentient Dark Ones. The political drama is ramped up significantly this time, with a story that shows that man has learned little from almost being wiped off the face of the planet once. The player must sort through the intrigue, while asking the cliched question of who is the greater monster in a world of man and mutant.

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