Back هاف-لايف: أوبوزينغ فورس Arabic هاف-لايف: اوبوزينج فورس ARZ Half-Life: Opposing Force Azerbaijani Half-Life: Opposing Force Byelorussian Half-Life: Opposing Force BE-X-OLD Half-Life: Opposing Force Catalan Half-Life: Opposing Force Danish Half-Life: Opposing Force German Half-Life: Opposing Force Spanish نیمهعمر: نیروی مهاجم Persian
| Half-Life: Opposing Force | |
|---|---|
 Cover art, depicting the game's protagonist, Adrian Shephard | |
| Developer(s) | Gearbox Software |
| Publisher(s) |
|
| Director(s) | Randy Pitchford |
| Producer(s) | Randy Pitchford |
| Designer(s) | Rob Heironimus |
| Programmer(s) | John Faulkenbury |
| Artist(s) | Brian Martel |
| Writer(s) |
|
| Composer(s) | Chris Jensen |
| Series | Half-Life |
| Engine | GoldSrc |
| Platform(s) | Windows, OS X, Linux |
| Release | |
| Genre(s) | First-person shooter |
| Mode(s) | Single-player, multiplayer |
Half-Life: Opposing Force is an expansion pack for the first-person shooter game Half-Life. 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 noted that he 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.
Opposing Force portrays the events of Half-Life from the perspective of a U.S. Marine, one of the enemy characters in the original. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility when a scientific mishap causes it to be invaded by aliens, but quickly finds that the Marines are outnumbered and slowly being beaten back by a second alien race and black operations units.
Opposing Force was received well by critics, with many describing it as the new benchmark title for expansion packs, in a similar fashion to how Half-Life revolutionized the first-person shooter genre. Other reviewers, however, thought that, despite its accomplishments, it still suffered from the negative aspects of other expansion packs.
- ^ "Gone Gold : EuroGold". February 10, 2001. Archived from the original on February 10, 2001. Retrieved November 25, 2023.