Half-Life: Opposing Force
Opposing Force returns to the same setting as Half-Life, but instead portrays the events from the perspective of a U.S. Marine, one of the enemy characters in the original game. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility after 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.
- Released
- 10th Nov 1999
- Developer
- Gearbox Software
- Publisher
- Sierra Entertainment
- Platforms
- Linux, PC (Microsoft Windows), Mac
- Genres
- Shooter, Platform, Puzzle
Series: Half-Life