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About Valve Software
Valve is an entertainment software and technology company founded in 1996 by former Microsoft employees Gabe Newell and Mike Harrington. Based in Bellevue, Washington, the company first became famous with the 1998 release of its debut title, Half-Life, which has received worldwide critical acclaim.
The Valve 'Head'
Valve soon expanded the Half-Life franchise with a sequel and Half-Life 2 Episodes 1 and 2.
New games were also released such as zombie shooters Left 4 Dead and Left 4 Dead 2, the
multiplayer combat franchise Team Fortress 2, the #1 online action game Counter-Strike and the award-winning puzzlers Portal
and Portal 2.
In addition to producing best selling entertainment titles,
Valve is a developer of leading-edge technologies including
Steam. Steam has quickly become the world's largest online
gaming platform. Steam guarantees instant access to more than
1,800 game titles and connects its 35 million active users to
each other with community features. Through Steam, fans can
easily buy, play, share, modify, and build communities around
Valve products as well as titles from other independent game
In addition to Steam, there is Source, their custom built game
engine which all their games since Half-Life 2 have taken
advantage of. Its sophisticated character animation, advanced
AI, real-world physics, shader-based rendering, and super
extensibility have made it one of the most flexible,
comprehensive, and powerful game development environments
Gabe and Mike Harrington fly to Texas to meet with id
Mike Harrington and Gabe Newell form Valve Software.
Company documents are signed on Gabe Newells wedding day.
August 26th, Team Fortress is released as a Quake mod.
Sierra announces plans to publish Half-Life.
June 19th-21st, Half-Life is demonstrated at E3 trade show.
October 2nd, Half-Life delay is officially announced. First quarter 1998
release date is set. Half-Life is scrapped and restarted.
October 16th, Half-Life Preliminary Findings CD released to select
retail outlets containing early Half-Life media.
Prospero development is shelved.
May 24th, First Half-Life ads appear in the gaming press.
June 1st, Half-Life is shown in its new form at the E3 trade show.
June 30th, Sierra pushes back the release date to 'fall 1998'. Valve
denies the rumour stating a "summer" release is still
September 9th, Official letters reveal release date to be October 15th.
Official press release details the shipping of Day One OEM Half-Life.
September 28th, Sierra representative confirms new release date of "late
October" after rumour of a November 7th completion.
November 9th - Half-Life goes gold.
November 19th, Half-Life is released.
January 13th, Team Fortress Classic is announced as a
free ad-on available "in the coming weeks".
February 12th, The Uplink Demo is released with an all-new adventure
designed to interest new users becomes available.
March 15th, Gooseman and Cliffe start development of Counter-Strike.
April 7th, Team Fortress Classic is released.
April 7th-9th, The SDK is officially released.
April 16th, Opposing Force is announced as a retail add-on for
July 29th-August 3rd, The first Mod Makers exhibition is declared a
May, Opposing Force is showcased at E3 trade event.
October 19th, Half-Life for Mac is cancelled.
June 19th, The first version of the Counter-Strike Half-Life
modification is released in beta.
June 25th, Half-Life Game of the Year Edition is released with Team
Fortress classic included.
November 10th, Half-Life: Opposing Force is released.
December 19th, Half-Life Adrenaline Pack is released with the original
game, TFC and Opposing Force.
August 29th, Joint press release regarding Dreamcast Half-Life
incorporating Blue Shift.
November 1st, Valve release Ricochet as a free Half-Life
November 9th, Half-Life platinum pack is released.
November 20th, Gunman Chronicles is released.
November 20th, The Counter-Strike mod team partner with Valve and
release a polished retail version of the game.
Counter-Strike is adopted as the feature event at gaming
tournaments worldwide such as the World Cyber Games and others.
March 16th, Dreamcast Half-Life with Blue Shift is cancelled.
Work begins on a single-player version of Counter-Strike later
transformed into Condition Zero and Counter-Strike Xbox.
June 1st, Deathmatch Classic is released.
June 12th, Half-Life: Blue Shift is released on PC.
November 12th, Half-Life on the Playstation 2 with Decay is released.
March 22nd, Valve announce plans for Steam at the Games Developer
June, Day of Defeat team offered a job at Valve
June 12th, Richochet is released.
March 21st, Valve internally schedule Half-Life 2's release for
'September 30th' a date which is infamous with HL2 fans.
April 4th, Day of Defeat goes gold.
April 21st, First media reports on Half-Life 2 are shown.
May 1st, Day of Defeat released as a retail game.
May, Half-Life 2 first shown at E3 trade show. Release date is set for
September 11th, Signs of odd computer happenings at Valve begin.
September 19th, An unknown person makes a copy of the Half-Life 2 source
tree. And key loggers are believed to have been installed on Valve