Alien Swarm is a game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community.
Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes. Plan your ...
Your mission was to find and destroy a secret alien lab. Now you have crash landed and are stranded in an infested forest. Find your way to the underground entrance and complete your mission.
Be sure you read any hints on the screen and pay attention to the areas around you. Check computers, look for keys, and conserve your gear, you're going to need it.
Welcome to the harsh planet of Tarnor. A nearly airless rock circling an ancient Red Giant, the planet is subject to baking heat in the day and freezing colds at night. Despite the unforgiving nature of the planet, the bustling colony of Oasis thrives on the surface as a major trading hub. It's often been said that whatever you need you can find it at Oasis, for a price. However, the colony has...
There are five missions in this Campaign.
All the missions have specific objectives.
Images for the addon and each mission on the selection screen have been added.
Minimaps are available for 4 out of 5 missions.
PDAs and Radio transmissions will convey the storyline.
Some of the non-objective PDAs are not obvious, so keep an eye out.
You play a Marine attached to the TMF Sisyph...
Extermination is a campaign which unites these maps:
Midnight harvest 1 Midnight harvest 2 Arctic infiltration Area Cold catwalks Yanaurus mine Forgotten Factory Communication station Full Treatment - Syntek hospital