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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.
Release Date: Nov 1, 1999

Buy Opposing Force

$4.99

Packages that include this game

Buy Half-Life 1 Anthology

Includes 4 items: Half-Life: Blue Shift, Team Fortress Classic, Half-Life: Opposing Force, Half-Life

Buy Half-Life Complete

Includes 10 items: Team Fortress Classic, Half-Life: Opposing Force, Half-Life, Half-Life: Blue Shift, Half-Life 2, Half-Life: Source, Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life 2: Episode One, Half-Life 2: Episode Two

Buy Valve Complete Pack

Includes 24 items: Counter-Strike, Team Fortress Classic, Day of Defeat, Deathmatch Classic, Half-Life: Opposing Force, Ricochet, Half-Life, Counter-Strike: Condition Zero, Half-Life: Blue Shift, Half-Life 2, Counter-Strike: Source, Half-Life: Source, Day of Defeat: Source, Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life 2: Episode One, Half-Life Deathmatch: Source, Left 4 Dead, Half-Life 2: Episode Two, Team Fortress 2, Portal, Left 4 Dead 2, Portal 2, Counter-Strike: Global Offensive

About the Game

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.

PC System Requirements

    Minimum: 500 mhz processor, 96mb ram, 16mb video card, Windows XP, Mouse, Keyboard, Internet Connection

    Recommended: 800 mhz processor, 128mb ram, 32mb+ video card, Windows XP, Mouse, Keyboard, Internet Connection

Mac System Requirements

    Minimum: OS X Snow Leopard 10.6.3, 1GB RAM, 4GB Hard Drive Space,NVIDIA GeForce 8 or higher, ATI X1600 or higher, or Intel HD 3000 or higher Mouse, Keyboard, Internet Connection

Linux System Requirements

    Minimum: Linux Ubuntu 12.04, Dual-core from Intel or AMD at 2.8 GHz, 1GB Memory, nVidia GeForce 8600/9600GT, ATI/AMD Radeaon HD2600/3600 (Graphic Drivers: nVidia 310, AMD 12.11), OpenGL 2.1, 4GB Hard Drive Space, OpenAL Compatible Sound Card
Helpful customer reviews
36 of 41 people (88%) found this review helpful
1,503 products in account
30 reviews
9.9 hrs on record
An mazing expansion of Half-Life and my favourite one from the entire Half-Life 1 Anthology. For some reason i enjoyed it more even than the original Half-Life. A great opportunity to experience the military specialist's side of the story. Brand new weapons and a lot of new freaking aliens, also you get to use nightvision instead of the flashlight which is kinda cool, not even mentioning the new weapon that creates teleports to Zen, a different one for every location in the game where you use it. A great game with a captivant story. Definitely a must buy!
Posted: January 18th, 2014
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16 of 18 people (89%) found this review helpful
344 products in account
39 reviews
17.0 hrs on record
The multiplayer in this game is steller! Id buy it with a couple of friends souly for that! and its still a great game. I mean come on its half life.
Posted: April 10th, 2014
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12 of 13 people (92%) found this review helpful
84 products in account
14 reviews
12.4 hrs on record
Another expansion pack for the original HL, this time giving us a look into the "enemy side" and the way that the events of Black Mesa affected the Marine Corps called to "contain" the situation. The main character Corporal Adrian Sherpard is brought into the facility but things dont go like planned and all hell is broken loose.
Another short game that complements the original story of Gordon Freeman, but the ending of this game leads me to believe that we might see more of this character in future installements of HL, so it might not be just an expansion pack game.

9/10.
Posted: May 17th, 2014
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7 of 7 people (100%) found this review helpful
16 products in account
1 review
2.3 hrs on record
This game is an endless classic addition to the base Half-Life universe, a nice continuation of the feel of the original game that no fan should be without.
Posted: June 20th, 2014
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6 of 6 people (100%) found this review helpful
105 products in account
5 reviews
2.1 hrs on record
What an awesome and epic expansion for Half-Life! (Best expansion in my opinion)
We've got new weapons, cool enemies and more stuff that made the gameplay really good.
The story is amazing just like Half-Life and i highly recommend you to buy it!
However the Steam version got some problems. But i still recommend it!
Posted: June 23rd, 2014
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