$19.99
Estimated lifetime revenue
$7.82M
Gross, before Steam's cut
Net revenue
$5.47M
After Steam's 30% cut
Units sold
793.1K
≈ 12 sales per review
Reviews
68,945
Overwhelmingly Positive95% positive
Playing now
138
Not enough history yet
New reviews, last 30 days
—
Not enough history yet
History
Not enough history yet — the chart fills in as daily snapshots accumulate.
How it compares
Action →Against the 100 most-reviewed Action games on Steam
Outearns 19% of them — in the bottom quarter of the group.
Median
$57.52M
379,271 reviews
Top 10% start at
$182.06M
This game
$7.82M
Fewest reviews of the group
The group is the games with the most reviews under this tag, not every release, so it leans toward games that sold — a percentile here is a harder test than the same percentile across the whole store would be.
About
6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun!
- Developer
- Tripwire Interactive
- Publisher
- Tripwire Interactive
- Genre
- Action
- Released
- May 14, 2009
- Steam app ID
- 1250
- Data updated
- Sep 17, 2026
Estimates, not reported sales. No developer-published figures are on file for this game. See the methodology for how the numbers are built.