Half-Life: Opposing Force
Developer: Gearbox SoftwarePublisher: ValveReleased: Nov 1, 1999
-80% OFF
$0.99
$4.99
Reviews
28,388
Overwhelmingly Positive
Positive
95%
27,068 positive
Playing Now
109
concurrent
Peak 24h
109
players
About
Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences.
Historical Trends
Last 9 days
Total Reviews
28,388
Change
+0.7%
28,38828,292.528,197
Jun 1Jun 14Jun 28
Revenue Estimates
Gross Revenue
$1.21M
Net Revenue
$849.0K
After 30% Steam cut
Estimated Sales
397.2K units
~14x review multiplier
High confidence
Based on 28,388 reviews. Large sample size provides reliable estimates.
ℹ️ No verified data
Estimates are calculated using our algorithm based on reviews, price, and game age.
These are estimates only. Actual sales and revenue may differ significantly.
Last Updated
Jun 28, 2026