Half-Life: Opposing Force icon
Half-Life: Opposing Force
  • Avg. Rating:
    82 %
  • Owned by:
    109 Players
  • Total Playtime:
    2275h 43m
  • Average Playtime:
    20h 52m

  • Lootboxes:
    Unknown
  • Systems:
    • Windows:
      Yes
    • Linux:
      Yes
    • Mac:
      Yes
steam

Steam

95

Score

6541

Ratings

View on steam

steam

IGDB

76

Score

189

Ratings

View on IGDB

About
Developed by:
Gearbox Software
Published by:
Valve
First release on:
1 Nov. 1999