Half-Life: Opposing Force
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.
Your like matters. Every heart nudges this game's GamingPickz Score and where it ranks (a small 5% of the score), so the lists get better for everyone.
- Released
- 1999
- Developer
- Gearbox Software
- Platforms
- 1 systems
- Critics
- Not scored
- Steam Deck
- playable
- Download
- Not stated
What is Half-Life: Opposing Force?
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.
Description as published by the developer on its own store page, read 30 August 2026. It is marketing copy, not our assessment.
The record
| First released | 19 November 1999 |
|---|---|
| Developer | Gearbox Software |
| Publisher | Not recorded |
| Platforms | PC |
| Genres | First-Person Shooter, Puzzle |
| Languages | 4 supported |
Source. Catalogue facts from Wikidata Q693937, seeded 30 August 2026. Store data from Steam, read 30 August 2026.
How was Half-Life: Opposing Force received?
Method. Player figures are Steam's own totals for the PC version, read 30 August 2026. The Metacritic score is the one Steam publishes on its store page and can lag the site itself. Neither is our opinion. We have not published a review of this game.
Accessibility
Seeing
None declared
Hearing
- Custom Volume Controls
Input
- Playable without Timed Input
Difficulty
- Adjustable Difficulty
- Save Anytime
Method. Features the publisher declared on its own store page. A declaration is a floor, not a review.
What does it support?
| Capability | Support |
|---|---|
| Controller | Not stated |
| Cloud saves | No |
| Cross-platform play | No |
| Mod support | No official workshop |
| Online play | Single-player only |
| In-game purchases | No |
| Steam Deck | playable |
| Download size | Not stated |
| Add-on content | None listed |
| Age gate | None |
Content descriptors
- Frequent violence or gore
- General mature content
Method. Read from the publisher's Steam listing on 30 August 2026. Describes the PC version. Console versions differ.
What does it cost?
Steam price in US dollars, read 30 August 2026. Prices move hourly and vary by region. Check the current price.
Is Half-Life: Opposing Force worth it?
95% of 28,900 Steam reviews are positive, which Steam rates Overwhelmingly Positive. It costs $4.99 on Steam.
That is the data, not a verdict for sale: whether it is worth it depends on the price you pay and what you want. Players do report problems — see the reported-problems section below before buying. We have not published our own review of this game.
How long is Half-Life: Opposing Force? How long to beat it
Total play time for Half-Life: Opposing Force is about 7.2 hours to do everything, and around 5.2 hours to reach the end of the main story. These are player-submitted times from HowLongToBeat, not our own, shown with the number of players behind each.
| How you play | Hours | Players logged |
|---|---|---|
| Just the main story: straight through the critical path | 5.2h | 942 |
| Main + the extras: story plus the side content most people do | 6.3h | 272 |
| Completionist: everything: 100% the game | 7.2h | 219 |
At its current price of $4.99, beating the main story works out to about $0.96 per hour. That is the price divided by the hours, a value read and not a verdict: a longer game costs less per hour, which is not the same as being the better game.
Source: HowLongToBeat community submissions, read 2026-10-19.
Where Half-Life: Opposing Force sits on the grid
Compare the whole catalogueHalf-Life: Opposing Force plotted on the axes the GamingPickz Score is built from, on the full 0 to 100 scale so its position is its real one. Change either axis to see where it lands.
1 games have both
Players. The share of Steam reviews marked positive, pulled toward the catalogue average in proportion to how few reviews stand behind it. A game with 200 reviews moves a long way toward the average; one with 200,000 barely moves at all. Without this a title sitting at 100 percent on nine reviews outranks Half-Life 2 at 98 percent on 278,000.
Popularity. A blend of two things that are not the same. Audience is how many people wrote a Steam review, which is a floor on how many played it. Reach is how many language editions of Wikipedia document the game, which is cultural footprint rather than sales. A game can score high on one and low on the other: a huge free-to-play title has audience without reach, and a landmark console exclusive has reach without a Steam audience at all. Where both exist they are averaged; where only one does, that one carries it.
- PC
Every point links to that game's entry. The value map and the reception map are fixed views of the same data.
How positions are decided
No paid placement, no favouritism, live third-party data
- Placed by the published method, not by us. Every coordinate is computed from the axis definitions and weights printed on this site. Nobody moves a point. See the axes.
- Nothing here is paid for. No sponsored placements, no promoted slots, no arrangement of any kind affects a position. If that ever changes it will be labelled and sit outside the ranking.
- No favouritism, including our own. The 16 games we have written full reviews of are scored by exactly the same formula as the other 1,510, from the same third-party inputs, and they land where it puts them. Our own opinion of a game does not enter its coordinates.
- A position is not an endorsement. It says how a game was received and what it costs, not that we recommend it. Where we do recommend something, it carries a written review with a name on it.
- Fetched from live third-party data. Player sentiment from Steam, critic aggregates as published on store pages, prices checked hourly, attention from Wikipedia. Each figure carries its source and the date it was read, and we do not adjust any of them.
Estimated sales for Half-Life: Opposing Force
These are estimates, not reported figures. Gearbox Software has not published unit sales for Half-Life: Opposing Force, and nobody outside the company can measure them. What follows is arithmetic on the review count, with the method printed below so you can check it or reject it.
How this was calculated
Steam sales track review counts closely enough that dividing one by the other across games with published figures gives a usable multiplier. This is the standard method for estimating sales from outside a publisher.
| Reviews on Steam | 28,900 |
|---|---|
| Sales per review | 30 to 60 |
| List price | $4.99 |
| Assumed average selling price | 33% to 66% of list |
What this cannot tell you
Steam only. Console, Epic, GOG and retail sales are not in here. For a game that sold heavily on PlayStation this is a fraction of the real number.
The band is wide because the method is imprecise. Review rates vary with price, genre, launch era and how insistently a game asks. Published analyses put the ratio between 30 and 60 for paid games, and we show the whole range rather than picking a point in it.
The owner estimate above measures something else. SteamSpy counts accounts that have the game, which includes free weekends, bundles, giveaways and gifts. It sits higher than a sales figure for that reason, and the two are not alternative answers to the same question.
Revenue is the shakiest line. It assumes an average selling price well below list because most copies move in sales, and it ignores regional pricing, refunds, key resellers and whatever deal the publisher actually has with Valve. Treat it as an order of magnitude, not a figure.
If Gearbox Software publishes a real number we will use that instead and say where it came from. Our editorial policy covers how we handle figures we cannot verify.
Half-Life: Opposing Force price & deals: is it on sale?
We have one reading so far: $4.99 on 30 August 2026. Prices are checked daily from here, and this becomes a chart once there is more than one point to join. A single observation is a price, not a history.
What readers say about Half-Life: Opposing Force
Reviews written by people who have played it. These are separate from the GamingPickz Score and are never averaged into it: that score comes from thousands of Steam reviews with a sample-size correction, and a handful of unverified ratings would distort it rather than improve it.
Loading reviews…
Problems players report
We read the 300 most recent negative Steam reviews of Half-Life: Opposing Force on 30 August 2026 and counted what they mention. These are complaints, not confirmed defects: we have not reproduced any of them, and a review describes one person's machine. What the counts tell you is which problems more than one person ran into.
- Crashes and freezes13 of 300 (4%)
Unfortunately, the updated Steam version with widescreen support is broken as of writing, so the game may freeze or crash without warning.
Steam review, 19 November 2023 · 6 hours played · 8 readers marked it helpfulI have not beaten it yet, and this is because I died, then my game crashed, and now whenever i load my save the game just crashes.
Steam review, 6 September 2023 · 6 hours played · 3 readers marked it helpful
A further 13 reviews call the game buggy or broken without saying how, which is why they are counted separately rather than assigned to a theme. Counted by keyword across review text, so a review discussing two problems is counted under both. Read the reviews yourself.
Did it run on your PC?
Tell other players how it ran on your machine. One tap, from your saved PC if you have one.
Where Half-Life: Opposing Force appears
The ranked lists and finder pages Half-Life: Opposing Force qualifies for, from its own genre and platform to what it takes to run.
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Games like Half-Life: Opposing Force
24 games overlap with Half-Life: Opposing Force on the tags Steam players applied to it, on genre, and on theme. The closest are Half-Life: Blue Shift, Half-Life 2 and Half-Life.
Part of the Half-Life series
Half-Life: Opposing Force is one of 12 Half-Life games we track. See the whole series ranked by the GamingPickz Score, plotted on the grid, and listed in release order:
Half-Life: Opposing Force head to head
See Half-Life: Opposing Force compared side by side, on score, price, specs and more:
More Half-Life: Opposing Force comparisons: vs ACE COMBAT 7: SKIES UNKNOWN, vs STAR WARS Jedi Knight: Dark Forces II, vs Duke Nukem Forever, vs Half-Life 2: Deathmatch, vs Half-Life Deathmatch: Source, vs Half-Life: Alyx
Common questions about Half-Life: Opposing Force
What platforms is Half-Life: Opposing Force on?
Half-Life: Opposing Force is available on PC. It first released in 1999.
How much does Half-Life: Opposing Force cost?
$4.99 on Steam in the United States, read on 30 August 2026. Prices move often and vary by region, so check the store before buying.
Do players recommend Half-Life: Opposing Force?
95% of 28,900 Steam reviews are positive, which Steam rates Overwhelmingly Positive. That is players rating it, not our review. We have not published a review of this game.
Does Half-Life: Opposing Force work on Steam Deck?
Valve rates Half-Life: Opposing Force as playable on the Steam Deck, from its own testing.
Who made Half-Life: Opposing Force?
Half-Life: Opposing Force was developed by Gearbox Software.
Is Half-Life: Opposing Force worth it in 2026?
95% of 28,900 Steam reviews are positive (Overwhelmingly Positive), and it is $4.99 on steam. That is the strongest signal we hold; "worth it" depends on the price you pay and what you want, so weigh the sentiment against the current price above.
Is Half-Life: Opposing Force on sale?
Not at the moment. Half-Life: Opposing Force is at its $4.99 list price on Steam, read on 30 August 2026. It has been cheaper before; the price history above shows when.
How long does it take to beat Half-Life: Opposing Force?
about 5.2 hours for the main story, 6.3 hours with the main extras, 7.2 hours to complete everything, from HowLongToBeat's player-submitted times. These are community medians, so your own run may be shorter or longer.
Is Half-Life: Opposing Force worth the money?
At $4.99 for about 5.2 hours to beat the main story, Half-Life: Opposing Force works out to roughly $0.96 per hour. That is a value read, not a verdict: a longer game costs less per hour, which is not the same as being better. Weigh it against the review sentiment above.