Half-Life: Opposing Force

1999 expansion pack for the science fiction first-person shooter video game Half-Life
VideoGame expansion_add_on Q693937
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Half-Life: Opposing Force

Summary

Half-Life: Opposing Force is an expansion add-on[1]. It ranks in the top 8% of expansion_add_on entities by monthly Wikipedia readership (734 views/month).[2]

Key Facts

  • Half-Life: Opposing Force's instance of is recorded as Opposing Force — instance of (P31): expansion add-on[3].
  • Half-Life: Opposing Force's instance of is recorded as Opposing Force — instance of (P31): video game[4].
  • Half-Life: Opposing Force's composer is recorded as Opposing Force — composer (P86): Ben Houge[5].
  • Half-Life: Opposing Force was published by Opposing Force — publisher (P123): Sierra Entertainment[6].
  • Half-Life: Opposing Force's genre is Opposing Force — genre (P136): first-person shooter[7].
  • Half-Life: Opposing Force's genre is Opposing Force — genre (P136): science fiction video game[8].
  • Half-Life: Opposing Force followed Opposing Force — follows (P155): Half-Life[9].
  • Half-Life: Opposing Force's developer is recorded as Opposing Force — developer (P178): Gearbox Software[10].
  • Half-Life: Opposing Force's part of the series is recorded as Opposing Force — part of the series (P179): Half-Life[11].
  • Half-Life: Opposing Force's designed by is recorded as Opposing Force — designed by (P287): Randy Pitchford[12].
  • Half-Life: Opposing Force's Commons category is recorded as Half-Life: Opposing Force[13].
  • Half-Life: Opposing Force's platform is recorded as Opposing Force — platform (P400): Linux[14].
  • Half-Life: Opposing Force's platform is recorded as Opposing Force — platform (P400): macOS[15].
  • Half-Life: Opposing Force's platform is recorded as Opposing Force — platform (P400): Microsoft Windows[16].
  • Half-Life: Opposing Force's game mode is recorded as Opposing Force — game mode (P404): multiplayer video game[17].
  • Half-Life: Opposing Force's game mode is recorded as Opposing Force — game mode (P404): single-player video game[18].
  • Half-Life: Opposing Force's language of work or name is recorded as Opposing Force — language of work or name (P407): English[19].
  • Half-Life: Opposing Force's language of work or name is recorded as Opposing Force — language of work or name (P407): French[20].
  • Half-Life: Opposing Force's language of work or name is recorded as Opposing Force — language of work or name (P407): German[21].
  • Half-Life: Opposing Force's language of work or name is recorded as Opposing Force — language of work or name (P407): Korean[22].
  • Half-Life: Opposing Force's software engine is recorded as Opposing Force — software engine (P408): GoldSrc[23].
  • Half-Life: Opposing Force was distributed by Opposing Force — distribution format (P437): optical disc[24].
  • Half-Life: Opposing Force was distributed by Opposing Force — distribution format (P437): digital distribution[25].
  • Half-Life: Opposing Force's input device is recorded as Opposing Force — input device (P479): computer mouse[26].
  • Half-Life: Opposing Force's input device is recorded as Opposing Force — input device (P479): computer keyboard[27].

Product Details

The following facts are restated verbatim from public-domain and CC0 open-data sources — every line is independently verifiable against the named source's catalog.

MusicBrainz — CC0 open music encyclopedia

  • Release type: Album[28]

  • Secondary type(s): Soundtrack[29]

  • First release date: 1999-10-31[30]

  • MusicBrainz ID: 2ed83f82-3bbb-3dd5-9559-905e82be19a0[31]

Body

Authorship and Creation

Half-Life: Opposing Force was published by Opposing Force — publisher (P123): Sierra Entertainment[6].

Publication

Publication dates include November 19, 1999[32] and March 30, 2013[33]. Languages include Opposing Force — language of work or name (P407): English[19], Opposing Force — language of work or name (P407): French[20], Opposing Force — language of work or name (P407): German[21], and Opposing Force — language of work or name (P407): Korean[22]. Genres include Opposing Force — genre (P136): first-person shooter[7] and Opposing Force — genre (P136): science fiction video game[8]. Half-Life: Opposing Force's part of the series is recorded as Opposing Force — part of the series (P179): Half-Life[11]. Recorded distribution format include Opposing Force — distribution format (P437): optical disc[24] and Opposing Force — distribution format (P437): digital distribution[25].

Subject and Themes

Half-Life: Opposing Force's part of the series is recorded as Opposing Force — part of the series (P179): Half-Life[11].

Adaptations and Inspiration

Half-Life: Opposing Force followed Opposing Force — follows (P155): Half-Life[9].

Why It Matters

Half-Life: Opposing Force ranks in the top 8% of expansion_add_on entities by monthly Wikipedia readership (734 views/month).[2] It has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[34] It is known by 27 alternative names across languages and contexts.[35]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . AreWeAntiCheatYet. Retrieved . wikidata.org.
  13. [15] . Steam. Retrieved . wikidata.org.
  14. [16] . redump.org. wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . Steam. Retrieved . wikidata.org.
  17. [19] . Steam. Retrieved . wikidata.org.
  18. [20] . Steam. Retrieved . wikidata.org.
  19. [21] . Steam. Retrieved . wikidata.org.
  20. [22] . Steam. Retrieved . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.
  26. [32] . wikidata.org.
  27. [33] . wikidata.org.

Product details (FDA / USDA / NHTSA public-domain catalog data)

  1. [28] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  2. [29] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  3. [30] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  4. [31] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [34] . Wikidata sitelinks. wikidata.org.
  3. [35] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Half-Life: Opposing Force. Retrieved April 6, 2026, from https://4ort.xyz/entity/half-life-opposing-force
MLA “Half-Life: Opposing Force.” 4ort.xyz Knowledge Graph, 4ort.xyz, 6 Apr. 2026, https://4ort.xyz/entity/half-life-opposing-force.
BibTeX @misc{4ortxyz_half-life-opposing-force_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Half-Life: Opposing Force}}, year = {2026}, url = {https://4ort.xyz/entity/half-life-opposing-force}, note = {Accessed: 2026-04-06}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Half-Life: Opposing Force — https://4ort.xyz/entity/half-life-opposing-force (retrieved 2026-04-06)

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