Alien Swarm (2010)

- Developer
- Valve
- Genres
- Action
- Rating
- 4.7 of 5, 21,554 player ratings
- Typical playtime
- about 2.7 hours
- Where to get it
- Steam

The catalog in 3D
The same catalog has a room you can walk around in. The cat behind the counter is the AI Catbot, and they pick real games from it when you tell them what you feel like playing. Nothing is for sale, here or in there. Go in from here and this game is already out on the counter, with more like it waiting on the shelf next to it.
How it feels
It feels like a fast-paced, squad-focused bug hunt where coordinated teamwork and tactical loadouts are key to surviving waves of aliens.
cooperativetacticalintensearcadeyclass-basedfree to playaction-packed
What players say
Players call Alien Swarm a fun but abandoned co-op shooter from Valve. Many say Reactive Drop is the better-supported version to play now. The game is simple and free, and some came only for the TF2 hat.
Screenshots





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Alien Swarm: Reactive Drop (2017)
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Alien Breed 2: Assault (2010)
Natural Selection 2 (2012)- More like this game, on a shelf you can walk up to.It's the lit case on the top shelf.
More by Valve
Portal 2 (2011)
Portal (2007)
Half-Life: Alyx (2020)
Left 4 Dead 2 (2009)
Half-Life 2 (2004)
Counter-Strike (2000)
Half-Life 2: Episode Two (2007)
Half-Life (1998)
This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? You can browse by platform and genre, or take this one into the 3D catalog and ask the Catbot for something closer.