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Half-Life: Opposing Force

Developed by
  1. Gearbox Software
Published by
  1. Valve
T2
Peak #87
Current #373
Top 250 55%
Gem Peak #38

Ranking history

T1
No data
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Review history

T1
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Price history (USD)

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News

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.

95%
5%
0%
AAA
T1

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Tags Tags are sorted in descending order of votes. Votes are the number of times a tag has been applied to this game by a Steam user, shown next to each tag name.

  1. FPS 944
  2. Action 370
  3. Classic 299
  4. Sci-fi 292
  5. Singleplayer 273
  6. Shooter 261
  7. First-Person 230
  8. Aliens 220
  9. 1990's 175
  10. Adventure 144
  11. Military 140
  12. Atmospheric 138
  13. Story Rich 109
  14. Silent Protagonist 106

Below threshold Tags below the threshold do not have enough votes to be considered valid for this game yet.

  1. Great Soundtrack 80
  2. Gore 70
  3. Puzzle 66
  4. Retro 51
  5. Moddable 50
  6. Co-op 48

Dates

Released
1999-11-01 (26 years ago)
First review

Date of first review. Games cannot be reviewed before they are released, so when this is earlier than the release date, it usually indicates a game that was in early access.

T1
Age on Steam

Days since first review, which is typically how long the game has been available for purchase.

T1

Reviews

Total reviews verified
27,963 24,472 (88%)
Review breakdown
26,660 95.3%
1,303 4.7%
Review velocity
4 reviews per day
Reviews today
6
Days in top 1000
5,631 (99%)
Estimated owners Based on research by GameDiscoverCo median
T2 T2

Pricing

Release price
$0.00 (1999-11-01)
Lowest price

Date of the earliest occurrence of the lowest price this game has sold for.

$0.49 (2019-06-25)
Average price
$4.59
Average discount
$1.36
Number of discounts
63
Days discounted
627 (11.1%)
Estimated gross sales Based on research by GameDiscoverCo median
T3 T3
Estimated net sales Based on research by GameDiscoverCo median
T3 T3

Size

Size on disk
273 M (286,265,390 B)
Download size
141 M (147,668,032 B)

Languages

  • English
  • French
  • German
  • Korean

Details last updated: April 20, 2026 03:06 UTC

Similar games

  1. logo Half-Life (1998)
  2. logo Half-Life: Blue Shift (2001)
  3. logo Black Mesa (2020)
  4. logo Half-Life 2 (2004)
  5. logo Crysis Warhead® (2008)
  6. logo F.E.A.R. (2005)
  7. logo Quake 4 (2005)
  8. logo Quake II (1997)
  9. logo Singularity™ (2010)
  10. logo Aliens versus Predator Classic 2000 (2000)
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