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.
User reviews: Overwhelmingly Positive (1,044 reviews)
Release Date: Nov 1, 1999

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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

 

Recommended By Curators

"Still one of my favorite expansions ever. Kill aliens (or scientists) with a wrench, a tentacle or a labia that shoots green eggs and ham. Recommended."

About This 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.

System Requirements

PC
Mac
Linux

    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

    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
    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
55 of 59 people (93%) found this review helpful
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 17
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31 of 33 people (94%) found this review helpful
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 20
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20 of 23 people (87%) found this review helpful
2.5 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 23
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17 of 18 people (94%) found this review helpful
15.1 hrs on record
Making an expansion pack to Half Life was no small task. But Gearbox was more than willing to set the bar.

Opposing Force is fundamentally a similar experience to Half Life 1. But it expanded on it's core foundation in numerous ways. There are new actually interesting weapons, friendly squad members who serve different non-combat roles and a few other things.

But what Opposing Force does well is it continues the legacy left by Half Life 1. It has consistantly good pacing and like Half Life dynamically goes from low-key puzzle segments to high octane action horror. It's just so much fun to play it's an actual challenge for me to pick between playing either Half Life or Opposing Force. Since both games compliment each other so well.

If you like Valve games, or even first person shooters. You owe it to yourself to play Opposing Force. It is one of those games that you just can't stop playing.
Posted: September 27
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15 of 23 people (65%) found this review helpful
1.3 hrs on record
Call of Duty: Black Mesa
Posted: August 20
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97 of 101 people (96%) found this review helpful
6.5 hrs on record
Status: Approved
Highly recommend this one
It consists of 12 Chapters, but overall, is just as short as Blue Shift
What i liked about it, was the Boot Camp. basically it's a typical traning mission, but well, a nicely done training mission. Had a lot of Army stereotypes and Full Metal Jacket references
Now, unlike Blue Shift the game has a lot of new things added to it:
You get nightvision instead of the flashlight
sniper instead of the crossbow
pistol with a laser pointer instead of the revolver
wrench and a knife instead of the crowbar
2 new alien weapons, one is like a bazooka, the other has infinite ammo(shoots lightning balls)
Instead of long jumps, your protagonist climbs on ropes
1 new Black Mesa prototype weapon, that teleports you to Xen. The location you get teleported in has a lot of loot.
1 completely new weapon, not just an alternative model - a machine gun (M249 SAW)
There are new alien types to fight
Also, throughout the game, you will encounter your comrades, the most important ones are medic and engineer. Medic can patch you up, while the engineer can drill through doors.
And you would probably want to buy it for the plot
Though just like with Blue Shift, it doesn't really collide with Half Life 1 plot, you see Freeman once and that's it, but unlike Blue Shift, it has some important stuff to bring to the table
Posted: November 20, 2013
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