Half-Life: Opposing Force
| Use attributes for filter ! | |
| Initial release date | November 19, 1999 |
|---|---|
| Engine | GoldSrc |
| Developers | Valve Corporation |
| Gearbox Software | |
| Designers | Randy Pitchford |
| Richard Gray | |
| Platforms | Microsoft Windows, Linux, Macintosh operating systems, macOS |
| Modes | Single-player video game |
| Multiplayer video game | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2479037 |
About Half-Life: Opposing Force
Half-Life: Opposing Force is an expansion pack for Valve's science fiction first-person shooter video game Half-Life. The game was developed by Gearbox Software and Valve and published by Sierra On-Line on November 19, 1999. Opposing Force is the first expansion for Half-Life and was announced in April 1999.
