While you're playing through the criminally underrated Metro Redux (Last Light, specifically) you've probably already blasted your way through many of the overgrown mutated spiders that lurk in the Moscow underground. However, as scary as these isolated incidents are they're nothing on the spider's lair you'll find yourself trapped in later in the game. Equipped with nothing but your trusty flashlight and a couple rounds for your shotgun, the game's additional DLC tasks you with clearing out an underground spider-nest infested with hordes of the irradiated creatures. https://www.youtube.com/watch?v=q8WBze219MI It's a nerve-racking episode, as you're forced into tiny, claustrophobic environments all the while fifty repulsive spiders want nothing more than to tear your throat out.
