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 (1,940 reviews)
Release Date: Nov 1, 1999

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Buy Opposing Force

Packages that include this game

Buy Half-Life 1 Anthology

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

Buy Half-Life Complete

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

Buy Valve Complete Pack

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

 

Recommended By Curators

"Return to Black Mesa in Half-Life’s first expansion. With new weapons, enemies, and story arcs, it clearly lives up to the standards set by the original"

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

Windows
Mac OS X
SteamOS + 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
17 of 18 people (94%) found this review helpful
5.1 hrs on record
Posted: March 21
The game follows the storyline of the original Half-Life game but goes even deeper showing the final hours before the destruction of the facility that weren't in the original game. The game follows a marine who is sent to a classified mission in Black Mesa.

The story is the same as the original Half-Life but from a different perspective. Some events that happened in the original game can also be seen in this game adding to the experience if you've played the original game. Later, the player encounters completely new types of enemies.

The game has the same feel as the original Half-Life with all the puzzles and boss fights. Overall the game is very fun to play and is a great FPS experience.
Was this review helpful? Yes No Funny
7 of 7 people (100%) found this review helpful
2.1 hrs on record
Posted: June 11
Nostalgia!

This Half Life expansion takes a different spin. Instead of playing a Black Mesa personal you are Corporal Adrian Shepard and you are task to hunt down Gordon Freeman and terminate him. You think it would be easy, instead just like the Black Mesa personal you are thrown into the chaos that is wrecking havoc all across the facility and just like everyone else. You must fight your way through the facility and survive.

This game adds a lit bit of something new to the game. Not only new alien species. But also team effort. Your AI squad mates that are dotted throughout the huge complex. Be warn however there are some instances that they MUST SURVIVE if they die then you will have to start all over again from where you last save. So keep them alive and work with them.

This game adds more puzzle and more exploration to the huge facility which is always nice. The only minor complaint is the senstivity in some cases it can get really annoying or dizzy when doing these physical puzzles (jump, crouch jump) those sort of puzzles. Unlike in the previous games where the looking senstivity and what not seems more slower. So beware of that.

If you are a Half Life fan and want a taste of of military action. Half Life style. This game is recommended
Was this review helpful? Yes No Funny
6 of 6 people (100%) found this review helpful
1 person found this review funny
3.2 hrs on record
Posted: August 11
This is actually my first time playing opposing force even though i have gone though the regular half life 1 and 2 many times. It's suprisingly short.. probably half as long as half life 1.

The graphics and puzzle are just about the same difficulty but jumps are little bit harder.

It's much easier to die in earlly game from the envirment hazards and late game became black OPs.

Overall it's a nice little addition to the original half life 1.

8.5/10.

IF you have missed this one like me.. spend some time to try it. It's not long but it's still quite fun like regular half life. only took me 3.2 hours to finish.
Was this review helpful? Yes No Funny
6 of 6 people (100%) found this review helpful
4.9 hrs on record
Posted: August 4
Half Life: Opposing Force is the final expansion pack for the original Half Life but is it worth your time ?

Half Life: Opposing Force puts you in the shoes of Corporal Adrian Shepard who is sent into Black Mesa to kill Gordon Freeman and you get to experience the invasion through his eyes.

Gameplay is the same as Half Life and Half Life Blue Shift but it adds new stuff to it. You can use the barnacle monster to swing around the environment. Overall apart from that new mechanic and new weapons like the teleportation gun that sends you to a location with ammo, armor and health pick ups.

The soundtrack is awesome as always. There are intense music during some of the later firefights and it's awesome. The audio for the bad guys isn't that good but that's too the age of the game. But the music overall is really good.

This expansion is really hard even on the normal difficulty. You will have to take things slowly, if you move too fast you will die cause some of levels are insanely hard.

Level Design for the most part is alright, there's less of thinking where to go, but it still has many places to explore to find secret stashes of ammo and health pick ups. But some of the levels have very claustrophobic environments that could confuse some players.

Half Life Opposing Force took me 5 hours to finish. It's quite short and it's doesn't have much replay value apart from the first playthrough where you will see everything there is to see.

The game has a few minor bugs like the enemy AI glitching through walls but overall it doesn't happen too often and there aren't any game breaking bugs that I could find.

Overall this is a very good expansion pack compared to Blue Shift. It's longer, adds more stuff and has a better story. Overall If you want the complete Half Life experience than by all means check out Blue Shift and Opposing Force. But if you have to choose one then by all means buy Opposing Force. I give Half Life: Opposing Force an 8/10
Was this review helpful? Yes No Funny
6 of 6 people (100%) found this review helpful
25.6 hrs on record
Posted: April 8
I only played so i could be with my snarks


Was this review helpful? Yes No Funny