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Game library / Half-Life: Opposing Force
Half-Life: Opposing Force
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Steam

Half-Life: Opposing Force

Catalogue information flags mature content for this game.

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.

Released · 1999-11-01

At a glance

About this game

Core game information and the store records it came from.

Title
Half-Life: Opposing Force
Content
Game
Release date
1999-11-01
Publisher
Valve
Platforms
Windows, Linux, macOS
Connected stores
1
Steam Steam source details
Store title
Half-Life: Opposing Force
Product ID
50
Developer
Gearbox Software
Publisher
Valve
Store platforms
Windows + Linux + macOS
Source checked
2026-10-09 22:57 UTC

Open official store page ↗

How you can play

Features and tags

Select a feature to find other games that have it.

Store tags

  • FPS
  • Action
  • Classic
  • Sci-fi
  • Singleplayer
  • Shooter
  • First-Person
  • Aliens
  • 1990's
  • Adventure

Genres

  • Action

Genres & themes IGDB

  • Shooter
  • Platform
  • Puzzle
  • Science fiction
  • Thriller
  • Warfare

Categories and genres from the Steam store, observed 2026-10-09. Additional genres and themes from the game’s verified IGDB record. Store tags from Steam, as players and the store apply them.

Compare & explore

One game, connected stores

Each store keeps its own prices and observations. We prefer the latest recorded EUR price for Europa. When the displayed currency differs from the store amount, a separate approximate value may use the latest available ECB reference rate.

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Lumiri price context

Recorded price comparison

Matching store titles. One currency. One market.

EUR SE

Lowest recorded amount

4.89 EUR

Steam

Recorded 4 days ago Over 48 h old

Difference between stores

—

One comparable store. A difference needs another matching store price.

Distance from observed low

+3.90 EUR

Steam listing only. Low: 0.99 EUR.

Last seen
Newest included record

1 record is over 48 hours old.

1 included price record from 1 store · 1 linked listing

See the 1 included observation
  • Steam history →Half-Life: Opposing Force
    4.89 EUR
    4 days ago · over 48 h old
How this comparison works

Only original EUR amounts recorded for SE and matching titles linked to this game are compared. Edition words and numbers must match. Other editions, source-market fallbacks and currency estimates are excluded.

These are recorded observations. Check the store for the current price, availability and included content. Historical lows belong to the named listing in this market and reflect the history Lumiri GameDB has collected.

Ratings at a glance

Community and editorial ratings

88/100

Lumiri average

2 included sources · 25,843 underlying reviews · source range 80–95

IGDB

IGDB

80/100 79.9421/100

80/100

406 user reviews · IGDB user rating

Included in the combined rating.

Checked

Read at IGDB ↗

Steam

Steam

95/100 95% positive

95/100

25,437 user reviews · Overwhelmingly Positive

24,289 positive · 1,148 negative

Included in the combined rating.

Checked

View the rating chart · User sources need 10 reviews; verified editorial sources qualify directly. The combined score is the arithmetic mean of included sources, not weighted by review count.

Player activity

Observed Steam player history

Latest 1,000 points at most. Individual observations.

Last observed Steam players
52
2026-10-14 06:52 UTC
Observed peak · 24h
52
Within the displayed history
All-time observed peak
155
· since Lumiri started observing
Average players · 24h
52
1 local samples · approximate for grouped data
First signal received

52 players observed

Observed player history is starting. The trend chart will appear automatically after the next collected sample.

View exact player observations
  • 2026-10-14 06:52: 52 current players

Observed by Lumiri GameDB during 24h. Times are UTC. Lines connect observations; gaps are not measured.

Open full player history

  • Samples: 1
  • Minimum: 52
  • Maximum: 52
  • Average: 52
Recorded prices

Price history · Steam

EUR observations for market SE. History belongs to the selected store listing; regional prices and taxes may differ.

Historical low observed by Lumiri GameDB: 0.99 EUR, last seen

Observed EUR price history Recorded prices over the past year, in UTC. A price holds until the next observation. Exact values follow below. 0 2 4 6 8 2026-09-18 00:03 UTC · 4.99 EUR2026-10-02 11:16 UTC · 0.99 EUR2026-10-09 22:57 UTC · 4.89 EUR 2026-09-18 00:03 UTC 2026-10-09 22:57 UTC
View 3 recorded prices
  • 2026-09-18 00:03: 4.99 EUR
  • 2026-10-02 11:16: 0.99 EUR (80% off)
  • 2026-10-09 22:57: 4.89 EUR

Prices observed by Lumiri GameDB in EUR.

Catalogue activity

Recent changes

Prices, release dates and store listing updates we detected. Repeated store refreshes are grouped.

  1. Price increase Steam

    0.99 USD → 4.99 USD (+404%)

  2. Price increase Steam

    0.99 EUR → 4.89 EUR (+394%)

  3. Price drop Steam

    4.99 EUR → 0.99 EUR (−80%)