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.
Sandpit v4.1.1 fixes Sandpit not loading in the latest version of Half-Life.
Half-Life Unified SDK Map Decompiler by SamVanheer - is a powerful tool used to decompile Half-Life 1 BSP version 29 and 30 files. It stands out from...
Version 1.2 of the mod. Some changes have been made.
***HOT FIX*** Redownload if you have downloaded it 10 hours ago. Updated codes and maps for the mod based on the recent feedbacks.
***PLEASE READ*** Rename the mod folder name from "gearbox_enlightened" to "op4relit" so that Steam can list the mod. It just come to my knowledge that...
This simple map edit fixes the infamous barrel bug.
This is new version of improved version of original version Intolerable Threat from RTSL
(PLEASE DON'T DOWNLOAD) This is improved version of original version Intolerable Threat from RTSL
Intolerable Threat: Remastered - Soundtrack This songs used from other games and mods.
This is official trailer of original version of Intolerable Threat (This is not fake)
boring force 2.0 edited.Previous version had issue not opening, this bug is fixed, if you encounter any issues please let me know.
Intense Force brings some features introduced in Half-Life: Field Intensity to Half-Life: Opposing Force.
Introducing XBLAH's Modding Tool V2.0, a versatile and powerful tool designed for both new and experienced modders. This latest version features two editions...
half life opposing force.boring force mod 2.0 update
Contains, Half Life FGD, HL Blue Shift FGD, HL Opposing Force FGD, Team Fortress Classic FGD, Ricochet FGD, Deathmatch Classic FGD, Day of Defeat FGD...
WARNING: REQUIRES OPPOSING FORCE A buggy trial of OP4 merge. Buggy but works. Will be very clean soon.
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This is the manual to Half-Life Opposing Force, Scanned into PDF format and was located on archive.org, This files does not belong to me and I do not...
Alpha version of my single cards. So far, only Pre-Alpha version is available :(
This is the official released Demo of Half-Life:Opposing Force, Released shortly after the full game came out, It contains a full hour's worth of play...
Half-Life Studio Model Decompiler by Flying With Gauss.
Several changes on the weapon and player, medkit values etc.
Sandpit v4.1 adds a new Sprite Menu, some Opposing Force entities, entity scaling and more.
This is a short group of maps from the main storyline (some unfinished and some completed.) Make sure to check out the training room. Only thing you need...
This is the official trailer to the stand-alone video game by Gearbox Software known as Half-Life:Opposing Force, This video originally was on the Gamespot...
Sandpit v4.0.1 fixes stability issue in the previous release.
Sandpit v4.0 is a complete re-write of Sandpit on the latest version on the Half-Life SDK.
Half-Life: Echoes .zip file - Version 1.3 - Requires Windows and the Steam version of Half-Life.
Beta release of Sandbot - a bot for Half-Life, Half-Life Opposing Force (deathmatch and capture the flag), Day of Defeat (territorial control), Gunman...