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.
- 開發商
- Gearbox Software
- 發行商
- Sierra Entertainment, Valve
- 發售日
- 平台
-
Steam、macOS、Linux
- 類型
- 平台跳躍、益智、FPS、動作
- 分級
- 限制級（18+）
- 價格
- 付費
