Download 9 'Co-Op' Maps for Alien Swarm.

Escape from the famous ship: THE TITANIC This is my first map which I upload (not the first I created) and it includes: custom textures scripted sequences An easter egg And a lot more to discover...

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 transm...

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...

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...

This map/campaign is in the early stages, and I thought that I should release a public alpha to get some feedback. I intended to have this map harder than normal, where you couldn't really solo this on easy but you could get through it w...

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

This is a survival map, where our place is the arena of battle. Our job is to kill the aliens in 1500. The map is quite difficult, you need to cover a good tactic. I wish you good fun.

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 attack using an unlockable arsenal of weapons with countless loadout configur...

Hold off against the swarm in this survival map. You have to keep alive for at least 10 minutes to win the mission.

A quick survival map I created...and yes, it was significantly edited from its TileGen version. =P Basically all marines need to survive for as long as they possibly can. All difficulty modes are supported, but generally speaking this is...

This is a survival map You have to hold out in an outpost for 10 minutes and then an airship comes to save you. This is my first Alien Swarm map I hope you like it. How to install: Extract the .vpk file to: C:\Program Files\Steam\steama...

1_ Extract the .ZIP file. 2_ Move the robot-1.vpk file to ":\Program files\Steam\SteamApps\common\alien swarm\swarm\addons" 3_ Play!!! Hope You'll enjoy it! Note: _To disable the skin, go in-game --> Options --> applications and uncheck...

This pack includes recolored marine skins for Alien Swarm. * INSTALL INSTRUCTIONS * Put the VPK-file into your "...\Steam\steamapps\common\alien swarm\swarm\addons" folder * DISCLAIMER * If you use my addons for your own addon or mod...

Holdout Hi all. New version is 1.9 Added Briefing map. Added wind sound. Added new decals. Added new models. Fixed some bugs (thx to airsoft343 and his friends) Map has 20 waves. Good Luck.

An alien swarm map for everyone to enjoy! Hope you like it.