Hypnos's Half-Life: Opposing Force Achievements

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Description

Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences.

Reviews: Overwhelmingly Positive
SteamDB Rating: 93.16%

Release Date: 1 Nov, 1999

Steam Deck Compatibility: Playable

Tags

FPS	934 votes
Action	362 votes
Classic	290 votes
Sci-fi	284 votes
Singleplayer	265 votes
Shooter	251 votes
First-Person	221 votes
Aliens	211 votes
1990's	168 votes
Adventure	141 votes
Atmospheric	132 votes
Military	132 votes
Story Rich	102 votes
Silent Protagonist	99 votes
Great Soundtrack	77 votes
Gore	65 votes
Puzzle	63 votes
Moddable	45 votes
Retro	44 votes
Co-op	42 votes