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 (1,048 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
19 of 20 people (95%) 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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9 of 11 people (82%) found this review helpful
0.1 hrs on record
An excellent expansion pack from developer Gearbox! I wonder how many of us still know what expansions were... nowadays these extra stories would come in the form of DLCs not an expansion pack. It meant to indicate a longer story and this is definitely a bigger pack than a dlc which can be a single weapon or a new costume for a character in the game.

In any case, Opposing Force puts us in the shoes of a corporal, a certain Adrian Shepard, who - along with his fellow soldiers - is sent to neutralise the enemies invading the Black Mesa facility. As expected, things go awry and you are alone facing the good-old aliens. There is a new assortment of weapons, new enemies and new music. Oh, and there are fat security officers helping you!

By the way: the game comes with widescreen settings and vsync can be switched on! Just excellent!

A relatively long and challenging expansion pack that comes very cheap. It did age a lot throughout the 15 years but it is still a great game... at least for reminiscing purposes.
Posted: September 30
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5 of 5 people (100%) found this review helpful
19.3 hrs on record
Best expansion for a game : EVER!
I haven't had so much enjoyment playing an expansion pack. As always, Valve never fails to impress, same goes to Gearbox for their legendary game developing skills.
Opposing Force not only expands the main game, but adds major updates to the already grand foundation laid out by Half-Life. The story starts right where Half-Life starts, but you're controlling a commando of the HECU unit (which was the army squadrons that were trying to kill you in the original game) and the plot cuts off to a different direction that we never got to see before and also you get to have super cool buddies and with so many additions to the game which are : MANY new weapons, different equipment, lots of new characters, better AI, squad teammates with different attributes, lots of new enemies.
And best thing was, I got this gem during the Valve special sale event along with the whole Half-Life collection just for 10 bucks. Best decision EVA!
10/10 - All hail Gaben, our lord.
Posted: October 3
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4 of 4 people (100%) found this review helpful
4.4 hrs on record
You get to play as a mute special force unit who wrecks havoc upon Black Ops assassins, and aliens from an alternative dimension with a wrench.
Posted: October 8
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5 of 6 people (83%) found this review helpful
1.4 hrs on record
HL: OpF was a great add on part to the Half-Life 1 story, where you play as Adrien Shepard...hope I spelt that correctly...I really don't like describing things, but I recommend because it was AWESOME FUN!
Posted: September 28
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3 of 3 people (100%) found this review helpful
8.0 hrs on record
As someone loving a good setting and a great story with room for theories and mystery, this game gives me everything I could ask for.
If you love or even like Half Life, play this game!
It enhances the story for a big chunk.
This game is from 1999, so I won't even talk about graphics and stuff, you can imagine how it looks.

The only thing that bothers me is that you change weapon if you pick up the new one.
That killed me once as I got some Nades from a crate, but that is a little thing.
You can't change that in the options menu, if you know console commands feel free to change it, I don't know how.

Anyways, you should totally get this game.
I hate that I did not play it earlier.
Posted: October 15
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2 of 2 people (100%) found this review helpful
0.6 hrs on record
A perfect add on for the original game, adds a whole new level of understanding and perspective to the events of Half Life. Worth buying, can't fault the game at all, as it still manages to entertain me as much as it did when I played it for the first time a few years ago, and has continued to do so for other people for years, great games never become "outdated" and this game is a truly shining specimen of a classic fps that delivers both action and reflection upon the original game. I urge you to buy it, no Half Life player should think twice before doing so

10/10
Posted: September 29
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2 of 2 people (100%) found this review helpful
1.0 hrs on record
In my opinion, this is easily the best Half Life classic. It features more weapons, more enemies, and overall a better gaming experience. I would higly recommend this game for anyone who liked the original Half Life.
Posted: October 4
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2 of 2 people (100%) found this review helpful
2.7 hrs on record
Half Life: Opposing force is an extension to the original Half Life game.
You play as a soldier interventing during the Black Mesa incident, so it happens (at least starts) during HL1's event.
It's a good extension and is worth giving a try if you liked HL1, as it brings a few new elements (weapons, some new gameplay possibilities like interaction with props) and it's always good to meet again these stupid Rambo sounding soldiers.
Posted: October 14
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1 of 1 people (100%) found this review helpful
0.4 hrs on record
I LOVE this game! I can play it overa and over again! Like it even more than original Half-Life! Have it on Steam and Half-Life GENERATION. 10/10 Would buy again!
Posted: September 27
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1 of 1 people (100%) found this review helpful
6.8 hrs on record
If you rlly like Half-Life 1, then this is the best thing you could buy, same history, different perspectives, new weapons, enemys, locations and some encounters with Gordon Freeman that rlyl makes you feel nostalgic xD
I Love you Valve ♥
Posted: October 5
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1 of 1 people (100%) found this review helpful
4.9 hrs on record
Well, no need to tell you what it is.
Opposing Force gives you different part of view on the Black Mesa incident, playing as Adrian Shepard, Miliary Specialist that has been sent to eliminate Gordon Freeman, but after arriving discovers that the best thing to do, is escape the facility.
Posted: October 20
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1 of 1 people (100%) found this review helpful
4.3 hrs on record
Adrian Shepard: ...
Gordon Freeman: ...
You don't need a character to talk to make a good game. Tenouttaten.
Posted: October 25
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1 of 2 people (50%) found this review helpful
12.8 hrs on record
loved it!
Posted: October 5
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1 of 2 people (50%) found this review helpful
1.0 hrs on record
I noscoped an assassin.

420/10
Posted: October 7
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0 of 1 people (0%) found this review helpful
1.1 hrs on record
Barney ♥♥♥♥ed up and got diabetes now you have to kill everything.
Posted: September 27
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0 of 1 people (0%) found this review helpful
0.3 hrs on record
Complete Awesomeness, I love playing this game
Posted: September 29
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0 of 1 people (0%) found this review helpful
12.7 hrs on record
It's okay.
Posted: October 3
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0 of 1 people (0%) found this review helpful
4.8 hrs on record
A solid and entertaining expansion. Short, but sweet.
Posted: October 4
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0 of 1 people (0%) found this review helpful
6.5 hrs on record
Awesome.
Posted: October 5
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