ActionFree To PlayCo-opMultiplayerOnline Co-OpAliensShooter
Alien Swarm Steam store
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Review Analysis Score
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Steam review activity
since launch, by month · major update
Oct 2010Nov 2026
per day · 36 reviews, peak 4/day
Oct 3Nov 1
per month · 118 reviews, peak 44/month
Aug 2026Oct 2026
per month · 235 reviews, peak 47/month
May 2026Oct 2026
per month · 484 reviews, peak 47/month
Nov 2025Oct 2026
Steam only gives daily counts for the last 30 days; longer ranges are by month. Months with fewer than 10 reviews are left out of % positive.