Top 100 Alien Swarm Videos With The Longest Duration by WithPCGameTop 100 » 200 » 300 » 400 » 500Video TitleDurationCategoryGame1.Alien Swarm - Walkthrough - Mission 1, 210:49WalkthroughAlien Swarm 2.Alien Swarm - Walkthrough - Mission 3, 410:43WalkthroughAlien Swarm 3.Alien Swarm - Walkthrough - Mission 78:31WalkthroughAlien Swarm 4.Alien Swarm - Walkthrough - Mission 5, 67:24WalkthroughAlien Swarm Top 100 » 200 » 300 » 400 » 500