Official Information Overview and Key Points Summary
Developer, release date, platform, pricing, languages, and official synopsis highlights.

Half-Life: Opposing Force was developed by Gearbox Software and published by Valve, released on November 1, 1999.
Official Information Overview
| Item | Content |
|---|---|
| Game Name | Half-Life: Opposing Force |
| Developer | Gearbox Software |
| Publisher | Valve |
| Release Date | November 1, 1999 |
| Genre Tags | Action |
| Supported Platforms | Windows / macOS / Linux |
| Store Pricing | ยฅ 22.00 |
| Official Languages | English, French, German, Korean |
| User Reviews | Approximately 25,449 Steam user recommendations |
| Media Scores | None (no scores published yet) |
Official Introduction Key Points
- Return as a military expert to the Black Mesa Research Facility, with the mission to eliminate Gordon Freeman
- Unveils a brand new chapter for single-player gameplay
- Encounter sinister alien enemies and try various new weapons
- Awarded the “Game of the Year” award by the Academy of Interactive Arts & Sciences
Official One-Sentence Summary
Returning to the Black Mesa Research Facility as a military expert, the mission is clear: to eliminate Gordon Freeman. This opens a new chapter for single-player gameplay. Encounter sinister alien enemies and experiment with various new weapons. Won the “Game of the Year” award from the Academy of Interactive Arts & Sciences.
The information above is from publicly available data on the Steam store page. In case of any discrepancies, the store page shall prevail.
More official screenshots can be found on the Gallery tab.