Half-Life: Opposing Force
1999 · Windows · Gearbox Software
Half-Life: Opposing Force is an expansion pack for the first-person shooter game Half-Life (1998). It was developed by Gearbox Software and published by Sierra On-Line for Windows on November 19, 1999. Opposing Force was the first expansion for Half-Life and was announced in April 1999. Lead designer Randy Pitchford believed Gearbox was selected to develop Opposing Force because Valve, the creators of Half-Life, wanted to concentrate on their future projects. Over the course of development, Gearbox brought in a variety of talent from other areas of the video games industry to help bolster various aspects of design. Synopsis from Wikipedia, CC BY-SA.
Where to buy
- Loosecart or disc only from A$39.51
- Complete in boxbox and manual from A$23.72
- Sealedunopened from A$316.21
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Editions
The formats this game was pressed for. Years are the release for that platform where Wikidata records one — a blank year means the platform is documented but the date isn't.