Left 4 Dead
Signal
The public input that drives the estimate.
Review count 68,446
Estimate low confidence
Lifetime units sold
2,053,380
821,352 – 4,106,760
Net revenue (after Steam cut, refunds, regional)
$11.2M
$4.5M – $22.5M
Method boxleiter:literature-baseline:v0 · as of 2026-10-10
This is a public-data approximation, not measured truth. Units are derived from review count via a genre/price-band multiplier; the band and confidence reflect that no verified sales data has calibrated this cell yet. Accuracy improves as real, opt-in sales data arrives.