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The video game developer behind the following IPs: Half-Life, Counter-Strike, Portal, Team Fortress, Left 4 Dead, in addition to several entertaining Source games. One of the few companies that hasn't lost its soul over the years and hasn't (significantly) declined in quality. That isn't to say they haven't done a few rather unpopular things, but at the same time we can't help but love them.
So earlier today; a friend of mine was bitching about Steam being required for this game he bought, how TF2 has been a failure since it went F2P, and how frustrated he was that CS:GO and DOTA 2 were being developed while there was still no word on Episode 3/Half-Life 3. Then he started playing his new copy of Portal 2, and said "I love you Valve. Will you marry me, Gabe Newell?"
by Uh, no. February 03, 2012
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A slow company that manufactures Half-life. Renowned for its eventual quality, yet sluggish nature
Person1: Hey, is that game out yet??
Person2: No
Person1: Why!?
Person2: Valve
Person1: Oh. I see.
by 123 June 13, 2004
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Creators of the hit PC title Half-Life, and its subsequent expansion-packs. Also recently implemented the Steam network, a method of software delivery intended to eliminate the middle-man ie. chains like Electronic Boutique and GameStop. Also currently working on Half-Life 2.
"Man, Half-Life 2 is gonna be delayed forever."
"Yeah, but it'll probably be worth the wait."
by Hamurabi July 31, 2004
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1. A device or structure purposed to control the flow or passage of any of the three states of matter: solid, liquid or gas. Such structures may be found in plumbing, as well as in the human body (specifically, the heart).

2. A company in the game development industry that designed and continues to build upon the Half-Life series. Also, the brains (or lack thereof) behind the infamous "Steam" client, content-delivery platform.
1. Some geniuses find it fun to open the valve on a helium tank, place their mouths over it, and begin hyperventilating.

2. There comes a point in one's life where one must ask life's greatest question: Does Valve's magnificent work with Half-Life outweigh the frustration and uselessness that Steam's impropriety brings? The world may never know.
by HB <3 SA April 24, 2006
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A Computer Game company founded by former Microsoft employee Gabe Newell in 1996 or 1997.

Valve made the computer game classics Half Life and Half Life 2.

Valve has a notorious reputation for being sluggish in game releases, yet notorious for its style.

It's located near Seattle, Washington.
The coolest game developers ever:

1. id software
2. valve
3. infinity ward
by Coolness February 03, 2005
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a video game developer. made left for dead the hlaf life series (which was phenomenal) portal, portal 2, counter strike, and above all my personal favorite team fortress 2
8:00-ok maybe ill sit dow play some games n shit tf2 maybe?
9:00:- WTF HAX whatever ill stab that mother fucker later
11:00- hmm its getting late should probobly stop soon
12:00- (at this point you are zombified and loving it)
3:00- fuckin pyros
4:00- valve is the shit but i think my conrtoller died
by Jason snuffelupogous April 02, 2011
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Valve is a gaming company that, while one of the slower companys when it comes to making games, have amazing games. While Valve made Portal, Half-Life, Team Fortress 2, and many more, they also made Steam which is the most used content for buying games online.
Valve makes great games that I would play over and over!
by Texasboy9753 January 05, 2013
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