Game InfoPreviously a mod for Unreal Tournament 2004, Alien Swarm is a top-down co-op shooter ported to Valve's Source engine
Game PlayBlast through waves of enemies with three other players from a top-down perspective.
- Over 40 weapons and equipment
- 4 unique classes and 8 unique characters
- Matchmaking, Steam Cloud, Steam Stats
- 64 achievements
- Tile-based map generation tool
member2751 and 521 others own Alien Swarm
LloydToS and 4 others played Alien Swarm
"Wait a minute... oh, sorry, I forgot, we're on TF2 and you're wearing the Swarm...
Like any game using Valve's Source engine, there are a lot of internal settings users can change through the... posted Jul 22, 10 5:32pm