Half-Life: Opposing Force sales estimate
Half-Life: Opposing Force is an action game by Gearbox Software, released on Steam on November 1, 1999 at $4.99. It has 25,742 Steam reviews (Overwhelmingly Positive, 95% positive). Markan estimates it has sold between 515k and 1.4M copies on Steam, for $893k to $2.5 million in net revenue.
Estimated lifetime sales and revenue
| Low | Medium | High | |
|---|---|---|---|
| Copies sold | 514,840 | 978,196 | 1,415,810 |
| Net revenue (USD) | $893,413 | $1,697,485 | $2,456,887 |
Steam doesn't publish sales. These estimates multiply the number of reviews by a factor that depends on the release year (the Boxleiter method). Net revenue is what's left of list price × sales after refunds, regional pricing, discounts, sales tax and Steam's 30% cut, before any publisher's share. Treat them as a ballpark for comparing games, not as reported figures.
Steam facts
| Developer | Gearbox Software |
|---|---|
| Publisher | Valve |
| Release date | November 1, 1999 |
| Price | $4.99 (US list price) |
| Reviews | 25,742 · Overwhelmingly Positive · 95% positive |
| Genres | Action |
| Platforms | Windows, macOS, Linux |
| Links | Steam store page |
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.From the Steam store page
Games like Half-Life: Opposing Force
Steam games that share the most distinctive tags with Half-Life: Opposing Force, with their own sales estimates.
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Half-Life: Blue Shift 2001 · $4.99 · 18,883 reviews
· ~718k sold -
Half-Life 1998 · $9.99 · 118,550 reviews
· ~4.5M sold -
Quake 2007 · $9.99 · 14,130 reviews
· ~537k sold -
Quake II 2007 · $9.99 · 8,602 reviews
· ~327k sold -
Half-Life 2 2004 · $9.99 · 205,056 reviews
· ~7.8M sold -
Duke Nukem 3D: 20th Anniversary World Tour 2016 · $19.99 · 5,555 reviews
· ~350k sold -
DOOM + DOOM II 2007 · $9.99 · 25,760 reviews
· ~979k sold -
Wolfenstein 3D 2007 · $4.99 · 3,802 reviews
· ~144k sold
Compare Half-Life: Opposing Force with your own game
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Steam IDs: 50, 130, 70, 2310, 2320, 220, 434050, 2280Or ask your AI assistant: Markan's data is also available to Claude, ChatGPT, Cursor and others through MCP.
Data from Steam, last updated by Markan on 2026-11-11.
