Cold Catwalks

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

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...

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.

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...

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...

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...

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...

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...