Oregon Gas Station - aerial view image - The Survival mod for Alien Swarm

The Survival is an episodic Source Engine total conversion mod with an original storyline and unique cast of characters. Play your way through a post-apocalyptic world and immerse yourself into the role of Emmett Gibson, an everyman who must not only protect himself, but a group of other survivors as well from the many unknown threats that await him. The Survival takes advantage of the Source Engine in many ways, both from the gameplay and graphical aspects. Everything from a wide variety of explorable maps to sound effects shapes the treacherous and immersive world of the game.