Half-Life: Opposing Force is an expansion pack for Valve Software's science fiction first-person shooter video game Half-Life. The game was developed by Gearbox Software and published by Sierra Entertainment on November 1, 1999. Opposing Force is the first expansion for Half-Life and was first announced in April 1999. Randy Pitchford, the lead designer on the game, later noted that he believed Gearbox was selected to develop Opposing Force because Valve wanted to concentrate on their future projects. Over the course of development, Gearbox brought in a variety of outside talent from other areas of the video games industry to help bolster various aspects of design. Opposing Force returns to the same setting as Half-Life, but instead portrays the events from the perspective of a U.S. Marine, one of the enemy characters in the original game. The player character, Adrian Shephard.
Good expansion pack
One of the best Expansion Packs out there for any PC Game!
The best Half-Life Expansion Pack and one of the best in games history.
A great expansion to an awesome game.
No Half-Life or FPS player would hate this mod! Awesome gameplay, a satisfying arsenal of weapons, the enemies... AND SO MUCH MORE!!! HL:OF rocks! \m/
Half-Life:Opposing Force comes from an era that expansion packs still mattered. If you loved the original game, this one will make you think that maybe it is even better than Half-Life itself.
Opposing Force is one of the greatest expansion packs ever made. Gearbox did a phenomenal job on this. It's sad we never got to see more of Adrian Shephard in the Half-Life universe, but who knows. Maybe we will see him again soon.
You looking to tweak out your setup, dirtbag!?! Love this expansion
Sir, Yes Sir! Opposing Force is pretty good.