These are the mods that have been downloaded the most for Alien Swarm. Alien Swarm is a computer game for PC. We have reset our counter from 2024-12-23 and these mods have been downloaded since then.
Alien Swarm is a pretty popular game for the PC and highly customizable using mods. Modding is very popular among the Alien Swarm community. You can even upload your Alien Swarm mods on LoneBullet and become a part of the community. The below mods are sorted by number of downloads this current week: