US now
$4.99
sampled low $4.99
RecentRecent reviews—
EnglishEnglish reviewsOverwhelmingly Positive (28,924)
Cost · guessCost to make · guesstimate
$6.6M–$87M USD
Earnings · guessSteam earnings · guesstimate
$1.5M–$7.8M USD
Guesstimates in USD, not publisher books or Valve data. Do not use them for investing, deals, taxes, or reporting.
How this guesstimate is made
Cost to make. Modeled as 25–90 people over 2.5–5.5 years at a loaded $105k–$175k USD per person-year. Development only, not marketing. Not a published budget.
Steam earnings. Steam earnings in USD from ~710k–1.8M copies × a mix of US list and sale price.
Development time guesstimate: 2.5–5.5 years. Confidence: medium. Time uses studio scale or a published figure. Cost to make is headcount × production years × a loaded USD cost per person-year, or a filing/interview number when one is on file. Steam earnings (USD) are reviews × a copies-per-review band × a mix of US list and sale price. These are independent algorithmic estimates from public data — not factual, not publisher books, not Valve.
Players
Exact in-game count from Steam’s public player API. The 24h change is versus PCGDB’s sample from about a day ago.
WaitingWaiting for first sample · every 60s
All sampled timeSep 19, 02:09 AM – Sep 20, 01:09 AM
Drag to zoom · hatched region is future
Half-Life: Opposing Force
In-game now
96
+14 vs 24h
24h peak
168
All-timeAll-time sampled peak
168
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.
Regional prices
Historical low for US: —
Now
$4.99
Launch
$4.99
Off
—
Price history starts at the first sample. Steam does not publish a public price archive.
Region-locked SKUs
Steam news
- No public Steam news sampled for this app.
Editions and DLC
Extra store packages and DLC from Steam’s last snapshot. DLC opens on PCGDB. A package that is not its own app opens on Steam.
Steam’s last store snapshot listed no extra editions or DLC for this app.