Platform: PC
Region: Region Not Set
Developer(s): Gearbox Software | Valve Corporation
Publishers(s): Sierra
ReleaseDate: 1999-11-01
Players: 1
Co-op: No
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.
Trailer: YouTube
ESRB Rating: M - Mature 17+
Genre(s): Shooter