. WW: February 14, 2013Mode(s),Half-Life (stylized as HλLF-LIFE) is a video game developed by and published by for in 1998. It was Valve's debut product and the first in the.

• Half Life Opposing Force Source Mod

Players assume the role of, a scientist who must find his way out of the Black Mesa research facility after an experiment goes wrong. The core consists of fighting alien and human enemies with a variety of weapons and solving puzzles. Unlike many other games at the time, the player has almost complete uninterrupted control of Freeman, and the story is told mostly through seen through his eyes.Valve co-founder said the team aimed to create an immersive world rather than a 'shooting gallery'. Half-Life received critical acclaim for its graphics, realistic gameplay, and seamless narrative. It won over fifty ' awards and is considered one the most influential titles of the first-person shooter genre, as well as one of the.

By 2008, the game had sold over 9 million copies.Half-Life received expansion sets (1999) and (2001). The game was ported to the in 2001, along with another expansion, as well as to and in 2013.

The game's, is a heavily modified version of the, licensed from, the framework of which would become the heavily utilized engine. Half-Life itself was remade as Half-Life: Source in 2004.Half-Life sparked numerous fan-made, several of them becoming standalone games, notably,.

Opposing Force 2: Lost is an unofficial sequel to Half Life: Opposing Force, demo now available. Here are the PC requirements for Opposing Force 2: Lost. Like most Half Life 2 mods, this one also does not require the full Half Life 2 game. Instead, PC gamers will only need the Source SDK Base 2007 software in order to run it.

A sequel, was released in 2004. An unofficial remake of Half-Life titled was released in 2015 as a mod of Half-Life 2. In this scene, the player must bypass a dam reservoir guarded by an attack helicopter, a squad of soldiers, and a gun emplacement.Half-Life is a that requires the player to perform combat tasks and puzzle solving to advance through the game.

Unlike most of its peers at the time, Half-Life used scripted sequences, such as a ramming down a door, to advance major plot points. Compared to most first-person shooters of the time, which relied on to detail their plotlines, Half-Life 's story is told mostly by means of scripted sequences (bar one short cutscene), keeping the player in control of the. In line with this the player rarely loses the ability to control the, who never speaks and is never actually seen in the game; the player sees 'through his eyes' for the entire length of the game. Half-Life has no 'levels'; it instead divides the game into chapters, whose titles flash on the screen as the player moves through the game. Progress through the world is continuous, except for short pauses for loading.The game regularly integrates puzzles, such as navigating a maze of conveyor belts or using nearby boxes to build a small staircase to the next area the player must travel to. Some puzzles involve using the environment to kill an enemy, like turning a valve to spray hot steam at their enemies. There are few in the conventional sense, where the player defeats a superior opponent by direct confrontation.

Instead, such organisms occasionally define chapters, and the player is generally expected to use the terrain, rather than firepower, to kill the boss. Late in the game, the player receives a 'long jump module' for the, which allows the player to increase the horizontal distance and speed of jumps by crouching before jumping. The player must rely on this ability to navigate various platformer-style in toward the end of the game.For the most part the player battles through the game alone, but is occasionally assisted by non-player characters; specifically security guards and scientists who help the player; the guards will fight alongside the player, and both guards and scientists can assist in reaching new areas and impart relevant plot information. An array of alien enemies populate the game, including,. The player also faces human opponents, in particular, Hazardous Environment Combat Unit (HECU) Marines and black ops assassins.Synopsis Setting Most of the game takes place in the: a fictional scientific complex built in a remote desert region of. The game's protagonist is, who becomes one of the survivors of an experiment that goes horribly wrong, when an unexpected 'resonance cascade'—a fictitious phenomenon—rips seams, devastating the facility. Hostile aliens from the dimension subsequently enter Black Mesa through these dimensional seams, attacking any human on sight.With the cooperation of surviving scientists and security officers, Freeman tries to escape the ruined facility, but soon discovers that he is caught between two sides: the hostile aliens and the, a special operations unit dispatched to eliminate the aliens and any surviving Black Mesa personnel—both to cover up the incident, and destroy all contamination.

Throughout the game, a mysterious figure known (but not actually referred to in-game) as the ' regularly appears and seems to be monitoring Freeman's progress. Ultimately, Freeman's goal shifts to reaching Black Mesa's mysterious 'Lambda Complex' (signified with the Greek lambda character '), where a team of survivors are rumored to have found a way to end the disaster once and for all.Plot Physicist Gordon Freeman arrives late for work at the Black Mesa Research Facility. He dons his Hazardous Environment (HEV) suit to carry out an experiment taking place in the Anomalous Materials section of the facility. When he pushes an unusual material into an anti-mass spectrometer for analysis, the spectrometer explodes, creating a 'resonance cascade' that opens a portal to another dimension,.Gordon escapes the destroyed lab.

Survivors tell him that communications with the outside world have been cut and urge him to head to the surface. Gordon fights his way through Black Mesa, defending himself against hostile Xen creatures (such as Vortigaunts and parasitic headcrabs), and U.S. Marines sent to the incident.On the surface, Gordon learns that scientists from the Lambda Complex may have found a way to close the portal. Gordon travels to the other end of the facility to assist them. Along the way, he activates a to destroy a giant tentacled creature and uses a disused railway system to reach and launch a satellite rocket. After he is captured by marines and left for dead in a garbage compactor, he escapes and makes his way to an older part of the facility, where he discovers Xen specimens collected before the resonance cascade.Overwhelmed by the aliens, the Marines pull out of Black Mesa and begin airstrikes.

Scaling cliffs, navigating destroyed buildings, and traversing through underground water channels, Gordon finally arrives at the Lambda Complex, where scientists have developed teleportation technology that allows travel to Xen. The remaining staff tells Gordon that the satellite failed to reverse the effects of the resonance cascade as an immensely powerful being on the other side of the rift is keeping it open. The scientists activate the teleporter to send Gordon to Xen and stop the being.In Xen, Gordon encounters the remains of researchers before him and defeats Gonarch, the huge egg-laying headcrab. At a factory creating alien soldiers, he enters a giant portal that sends him to a vast cave. There, Gordon confronts the Nihilanth, the entity maintaining the rift, and destroys it. Gordon is then awoken by the mysterious G-Man, who has been watching his progress and praises his performance.

The G-Man explains that his 'employers' wish to employ Gordon. If he accepts, the G-Man congratulates him and places him into stasis.

If he refuses, he is teleported to an area full of alien soldiers and is presumably killed.Development. Main articles:, andTwo by outside developer Gearbox Software have been released for the PC version: (1999) and (2001). The former returns the player to Black Mesa during the events of Half-Life's storyline, but this time from the perspective of, one of the Marines in the sent to cover up evidence of the incident. It introduced several new weapons, new, both friendly and hostile and new, previously unseen areas of the facility.Blue Shift returns the player to Half-Life's Black Mesa timeline once more, this time as, one of the facility's security guards. The expansion was originally developed as a bonus mission for the canceled Dreamcast version. Blue Shift came with the, that gave the player the option to update the look of Half-Life, Opposing Force, and the new Blue Shift content.Decay was another expansion by Gearbox, released only as an extra with the PlayStation 2 version of Half-Life. The add-on featured co-operative gameplay in which two players could solve puzzles or fight against the many foes in the Half-Life universe.In 2000, a compilation pack titled Half-Life: Platinum Pack was released, including (with their respective manuals) Half-Life, Half-Life: Opposing Force.

In 2002, the pack was re-released under the new titles Half-Life Platinum Collection and Half-Life: Generation. These new iterations also included the Half-Life: Blue Shift expansion pack; though if registered on, as well as and were also included. In 2005, Half-Life 1: Anthology was released, containing Steam-only versions of the following games on a single: Half-Life, Half-Life: Opposing Force, Half-Life: Blue Shift, and Team Fortress Classic. Main article:To experience firsthand the processes mod-makers would have to go through with the new engine, Valve Half-Life (dubbed Half-Life: Source) and Counter-Strike to their new.

Half-Life: Source is a straight port, lacking any new content or the Blue Shift High Definition pack. However, it does take advantage of for more realistic water effects, as well as Half-Life 2's realistic physics engine. They also added several other features from Half-Life 2, including improved dynamic lightmaps, vertex maps, ragdolls, and a shadowmap system with cleaner, higher resolution, specular texture and normal maps, as well as utilization of the render-to-texture soft shadows found in Half-Life 2's Source engine, along with 3D replacements in place of the old 16-bit color prerendered bitmap skies. The Half-Life port possesses many of the Source engine's graphical strengths as well as control weaknesses that have been noted in the Source engine.

Later updates added a option, support for OS X and Linux, an optional high-definition texture pack, among other improvements. Half-Life: Source is available with special editions of Half-Life 2, or separately on Steam. Half-Life Deathmatch: Source, the portion of the original game, much in the same fashion as the earlier released Half-Life: Source, was released in July 2005.Half-Life: Source had been criticized for not fully utilizing many of the features of the Source engine found in Half-Life 2, as it still uses textures and models from the original game. In response to this, a third-party mod remake called was developed with Valve's approval. Black Mesa, a fan-made remake of Half-Life utilizing the Source engine, began development in 2005, and was released as a free download on September 14, 2012, lacking only the final Xen chapter. The Xen portion was held back as the project team wanted to revamp this to try to address how the original Xen was poorly received compared to the rest of the game.

The free 2007 Source SDK base is needed to run the game. Black Mesa is also distributed via Steam; the remake was among the first ten titles whose release on the platform was approved using Valve's service. A separate effort, Project Lambda, is attempting to recreate Half-Life in the, allowing the game to support more advanced graphic features. Third-party mods. Main article:Half-Life saw fervent support from independent game developers, due in no small part to support and encouragement from Valve., the level-design tool used during the game's development, was included with the game software. Printed materials accompanying the game indicated Worldcraft's eventual release as a retail product, but these plans never materialized. Valve also released a, enabling developers to modify the game and create.

Both tools were significantly updated with the release of the 1.1.0.0. Supporting tools (including texture editors, model editors, and level editors such as the multiple engine editor ) were either created or updated to work with Half-Life.The Half-Life software development kit served as the development base for many multiplayer mods, including the Valve-developed Team Fortress Classic and Deathmatch Classic (an updated version of Quake).

Other mods such as Counter-Strike and ( DOD) began life as the work of independent developers (self-termed 'modders') who later received aid from Valve. Other multiplayer mods include, and.Numerous single-player mods have also been created.

Notable examples include (1999, a futuristic action-adventure on board a zoological research spaceship), (2000–2001, a trilogy involving zombies), (2001, a follow-up to the original Half-Life story with improved graphics), and (2002, a side-story to the original Half-Life).In 2003, Valve's network was. Among the files included an unreleased Half-Life modification: 'Half-Life: Threewave', a canceled remake of the mod from Quake. The files were later found by Tyler McVicker from a Vietnamese FTP server on February 2016 and were released unofficially in September 2016.

Mod-derived standalone games. Main articles:, andSome Half-Life modifications eventually landed on retail shelves. Counter-Strike was the most successful, having been released in six different editions: as a standalone product (2000), as part of the Platinum Pack (2000), as an version (2003), and as a single-player spin-off titled (2004), as well as in two versions using the Source engine. Team Fortress Classic, Day of Defeat, (2000, a futuristic -style with emphasis on its single-player mode) and Sven Co-op were also released as standalone products.Reception Sales According to Gabe Newell, Half-Life was budgeted with the expectation of lifetime sales around 180,000 units.

However, following its November 19 release, the game became a surprise hit. In the United States, Half-Life debuted at #8 on 's weekly computer game sales chart for the November 15–21 period, with an average retail price (ARP) of $49. It rose to sixth place the following week, before dropping to position 10 for the week ending December 5.

During the December 6–12 period, the game climbed back to sixth place; by this time, its ARP had dropped to $36. It placed between sixth and eighth on PC Data's weekly charts through the end of December, and its ARP rose back to $45 by the week ending January 2. PC Data declared Half-Life November's sixth-best-selling computer game in the United States, a position it held for the month of December. While its sales were below 100,000 copies in the country by November 30, Half-Life ultimately sold 212,173 units and earned revenues of $8.6 million in the United States by the end of 1998.During January 1999, Half-Life debuted at #3 on 's computer game sales rankings for the United Kingdom, and remained in PC Data's weekly top 10 for the entire month, peaking at #4.

After two full months of availability, overall sales of Half-Life surpassed 500,000 units by January 19. In the United States, it was the fifth-best-selling computer game for the month of January. On PC Data's weekly charts, it rose to #2 from February 7–20, with an ARP of $35. Holding a position in the weekly top 10 for the rest of February, it climbed to fourth for the month. The game remained in PC Data's weekly top 10 until the week of March 21, and dropped to position 11 for March as a whole.

In the United Kingdom, it placed second in February—behind the debut of —and fifth in March. In April, it claimed #3 on Chart-Track's rankings and dropped to #16 on those of PC Data. On April 23, Sierra announced that global sales of Half-Life had reached almost 1 million copies.After maintaining 16th place for May in the United States, Half-Life exited PC Data's monthly top 20 in June. Half-Life ultimately became the fifth-best-selling computer game of the first half of 1999 in the country. Its domestic sales during 1999 reached 290,000 copies by the end of September.During 1999, it was the fifth best-selling computer game in the United States, with sales of 445,123 copies.

These sales brought in revenues of $16.6 million, the sixth-highest gross that year for a computer game in the United States. The following year, it was the country's 16th best-selling computer game, selling another 286,593 copies and earning $8.98 million. The game's PlayStation release received a 'Silver' sales award from the (ELSPA), indicating sales of at least 100,000 copies in the United Kingdom. Half-Life 's global sales reached 2.5 million units by July 2001. A writer for noted in 2003 that 'a significant number of the 7.5m copies of the PC version were bought because the game offered such potential for community-driven expansion.'

As of November 16, 2004, eight million copies of the game had been sold, by 2008 9.3 million copies had been sold at retail. Awarded Half-Life with the world record for Best-Selling First-Person Shooter of All Time (PC) in the Guinness World Records: Gamer's Edition 2008.Critical reviews ReceptionAggregate scoreAggregatorScore96/100 (PC)87/100 (PS2)Review scoresPublicationScore9.4/109.5/10Half-Life has a score of 96 out of 100 on aggregate review website. 's said that the game 'is not just one of the best games of the year. It's one of the best games of any year, an instant classic that is miles better than any of its immediate competition, and - in its single-player form - is the best shooter since the original '. Described it as 'a tour de force in game design, the definitive single player game in a first person shooter'. IGN has also described the game as one of the most influential video games, saying that the history of the FPS genre 'breaks down pretty cleanly into pre- Half-Life and post- Half-Life eras.' Claimed that it was the 'closest thing to a revolutionary step the genre has ever taken'.reviewed the PC version of the game, rating it five stars out of five, and stated that 'It is fast paced, it is dramatic, and it brings the very idea of adventure on a PC out of the dark ages and into a 3D world.

All that and not a single Orc in sight.' The level of immersion and interactivity were cited by several reviewers as revolutionary. Said, 'It isn't everyday that you come across a game that totally revolutionizes an entire genre, but Half-Life has done just that'. Hot Games commented on the realism, and how the environment 'all adds up to a totally immersive gaming experience that makes everything else look quite shoddy in comparison'. Gamers Depot found the game engaging, stating that they have 'yet to play a more immersive game period'. Said that Half-Life was an 'immersive and engaging entertainment experience', but said that this only lasted for the first half of the game, explaining that the game 'peaked too soon'.The nominated Half-Life for its 1998 Outstanding Achievement in Character or Story Development award, although the game lost to. In the November 1999, October 2001, and April 2005 issues of, Half-Life was named Best Game of All Time/Best PC Game Ever.

In 2004, held a Title Fight, in which readers voted on what they thought was the greatest game of all time, and Half-Life was the overall winner of the survey. Gave it their Quantum Leap Award in the FPS category in 2006. Inducted Half-Life into their Greatest Games of All Time list in May 2007. 'Reviews. Half-Life'.

December 1998. From the original on November 26, 2007. Retrieved April 25, 2007. ^ Bell, Joe Grant (November 25, 1998). Half-Life: Prima's Official Strategy Guide. Tufnell, Nicholas (November 25, 2011). The Cambridge Student Online.

From the original on November 26, 2011. Retrieved November 26, 2011.

^. Archived from on May 20, 2012. Retrieved September 12, 2006. Archived from on February 23, 2011. Retrieved September 12, 2006. ^ Hodgson, David (2004). Half-Life 2: Raising the Bar.

Prima Games. ^. Archived from on February 24, 2011. Retrieved September 14, 2006. (in Spanish). August 29, 2018. Archived from on February 24, 2011.

Retrieved September 14, 2006. Archived from on March 8, 2010. Retrieved September 14, 2006.

Pp. 106–7. ^ Birdwell, Ken (December 10, 1999).

From the original on November 16, 2016. Retrieved February 14, 2017. ^. Archived from on September 28, 2011. Retrieved September 14, 2006. Wawro, Alex (February 13, 2017). From the original on February 14, 2017.

Retrieved February 13, 2017. Archived from on February 25, 2011. Retrieved September 14, 2006. Retrieved March 19, 2019.

IGN Staff (February 11, 1999). Combine OverWiki (January 2, 2011), retrieved March 24, 2019. Frank, Allegra (May 4, 2017). Retrieved March 22, 2019. Ostergrad, Genevieve (April 23, 1999). Archived from on February 23, 2012. Retrieved July 18, 2016.

Chau, Anthony (June 18, 2001). From the original on August 4, 2016. Retrieved July 18, 2016. IGN Staff (March 29, 2001). From the original on August 20, 2016. Retrieved July 18, 2016.

From the original on September 24, 2006. Retrieved September 3, 2006. alfred (January 29, 2013).

From the original on August 14, 2016. Retrieved July 18, 2016.

Half Life Opposing Force Source Mod

alfred (February 14, 2013). From the original on August 14, 2016. Retrieved July 18, 2016.

Retrieved March 24, 2019. Thorsen, Tor (May 24, 2006). From the original on November 25, 2013.

Retrieved April 27, 2007. Valve Corporation. September 25, 2013. From the original on March 20, 2015.

Retrieved March 9, 2015. Harris, Wil (September 18, 2004).

Archived from on June 4, 2008. Retrieved March 27, 2008. Retrieved March 22, 2019. Kelly, Andy (November 2, 2017). Retrieved September 16, 2018. Grayson, Nathan (May 9, 2012).

From the original on September 8, 2012. Retrieved September 22, 2012. Senior, Tom (September 3, 2012). From the original on September 22, 2012. Retrieved September 22, 2012. Cobbett, Richard (September 14, 2012).

From the original on September 25, 2012. Retrieved September 22, 2012. September 3, 2012.

Retrieved September 3, 2012. McWhertor, Michael (December 22, 2016).

Retrieved December 22, 2016. September 11, 2012. From the original on September 18, 2012. Retrieved September 22, 2012. Plunkett, Luke (September 16, 2018). Retrieved September 16, 2018. Walker, Trey (June 7, 2001).

From the original on October 22, 2016. Orland, Kyle (September 21, 2016).

Ars Technica. From the original on September 22, 2016. Retrieved September 22, 2016.

^ Baker, M. Sharon (February 26, 1999). Archived from on February 19, 2003.

^ Biederman, Christine (January 14, 1999). Archived from on October 3, 2012. Mayer, Robert (December 9, 1998). Archived from on April 6, 2005. Retrieved July 22, 2018. December 9, 1998.

Archived from on June 14, 2000. Retrieved July 22, 2018.

December 15, 1998. Archived from on June 21, 2000. Retrieved July 22, 2018. December 22, 1998. Archived from on June 6, 2000. Retrieved July 22, 2018.

Fudge, James (January 8, 1999). Archived from on April 7, 2005. Retrieved July 22, 2018. January 8, 1999. Archived from on March 11, 2000. Retrieved July 22, 2018.

^ Mullen, Micheal (January 12, 1999). Archived from on February 29, 2000.

Retrieved July 22, 2018. Mayer, Robert (December 13, 1998). Archived from on April 6, 2005. Retrieved July 2, 2018. Ocampo, Jason (January 15, 1999).

Archived from on May 2, 2005. Retrieved July 22, 2018. 'The Numbers Game'. April 1999. McNicholas, Conor (February 1999).

'Charts; The ChartTrack Top 10'. (73): 30. Fudge, James (January 19, 1999).

Archived from on April 6, 2005. Retrieved July 22, 2018.

January 27, 1999. Archived from on March 8, 2000. Retrieved July 22, 2018. February 2, 1999.

Archived from on February 26, 2000. Retrieved July 22, 2018. February 9, 1999. Archived from on March 8, 2000.

Retrieved July 22, 2018. February 18, 1999. Archived from on February 29, 2000. Retrieved July 22, 2018. Mullen, Micheal (February 16, 1999).

Archived from on June 7, 2000. Retrieved July 22, 2018. Fudge, James (February 23, 1999). Archived from on April 7, 2005. Retrieved July 22, 2018. ^.

March 10, 1999. Archived from on November 19, 2000.

Retrieved July 22, 2018. March 16, 1999. Archived from on March 3, 2000. Retrieved July 22, 2018. March 15, 1999.

Archived from on November 8, 1999. Retrieved July 22, 2018. March 25, 1999. Archived from on June 3, 2000.

Retrieved July 22, 2018. April 5, 1999. Archived from on June 19, 2000. Retrieved July 22, 2018. Fudge, James (April 16, 1999).

Archived from on April 7, 2005. Retrieved July 22, 2018. Shoemaker, Richie (March 1999). 'Charts; The ChartTrack Top 10'.

(74): 74. ^ Shoemaker, Richie (May 1999). 'Charts; The ChartTrack Top 10'. (76): 26. Fudge, James (May 17, 1999). Archived from on May 2, 2005. Retrieved July 22, 2018.

(Press release).:. April 23, 1999. Archived from on October 9, 1999.

Retrieved July 22, 2018. Fudge, James (June 15, 1999). Archived from on May 2, 2005. Retrieved May 8, 2018. Fudge, James (July 20, 1999). Archived from on April 7, 2005. Retrieved May 8, 2018.

IGN Staff (August 3, 1999). Archived from on March 5, 2000. Retrieved July 22, 2018.

'X-Tra; Death of the PC'. (18): 100, 101.

February 2000. Fudge, James (January 19, 2000).

Archived from on August 17, 2000. 'Shake Your Money-Maker'. April 2000. Archived from on February 21, 2009. Caoili, Eric (November 26, 2008). Archived from on September 18, 2017. Price, Tom (July 2001).

'Army of One'. (204): 50–55. 'Prescreen focus: Half-Life 2'. (124): 48–53.

June 2003. Mike Musgrove (November 16, 2004). Washington Post. From the original on October 25, 2012. Retrieved February 28, 2008. (December 3, 2008). Archived from on December 21, 2008.

From the original on February 2, 2017. Retrieved November 3, 2011. From the original on December 3, 2011. Retrieved November 3, 2011. ^ House, Michael L. Archived from on November 14, 2014. ^ Green, Jeff (February 1, 1999).

Archived from on February 9, 2002. Retrieved April 14, 2010. ^. From the original on October 31, 2013. Retrieved April 25, 2007.

^ 'Finals'. February 1999. From the original on March 12, 2017. Retrieved January 6, 2008. September 13, 2013. From the original on February 28, 2014.

Retrieved February 23, 2014. Archived from on February 1, 2003. Retrieved March 30, 2008. Gamers Depot. Archived from on March 8, 2005. Retrieved March 30, 2008.

Archived from on September 10, 2007. Retrieved March 30, 2008. Archived from on October 11, 1999. Archived from on May 23, 2010. Retrieved February 22, 2008. Archived from on May 11, 2013.

Retrieved September 3, 2006. Rorie, Matthew (May 18, 2007). From the original on January 19, 2015. Retrieved March 31, 2016.External links Wikiquote has quotations related to:. (archived).