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Yahn Bernier

Also Known As

  • Yahn W. Bernier

Game Credits


Gunman Chronicles (2000)   (Programming)
Half-Life: Counter-Strike (2000)   (Programming)


Supraland: Crash (2020)   (Testers / Tier 2 Crowdfunding backers)


Aperture Desk Job (2022)   (Valve)
Artifact: Foundry (2021)   (Valve)
Half-Life: Alyx (2020)   (Valve)
Dota: Underlords (2019)   (Valve)
Artifact (2018)   (Valve)
The Lab (2016)   (Valve is)
Counter-Strike: Global Offensive (2012)   (Valve)
Portal 2 (2011)   (Personnel)
Alien Swarm (2010)   (Valve)
Left 4 Dead 2 (2009)   (Valve)
Left 4 Dead (2008)   (Development Team)
Portal: Still Alive (2008)   (Personnel)
Half-Life 2: Episode Two (2007)   (Valve)
The Orange Box (2007)   (Valve)
Portal (2007)   (Valve Corporation)
Half-Life 2: Episode One (2006)   (Valve)
Half-Life: Source (2005)   (Valve is)
Counter-Strike: Condition Zero (2004)   (Valve)
Counter-Strike: Source (2004)   (Valve)
Half-Life 2 (2004)   (Valve)
Half-Life (2001)   (Valve)
Half-Life: Blue Shift (2001)   (Valve)
Half-Life: Game of the Year Edition (1999)   (Valve)
Half-Life: Opposing Force (1999)   (Valve is)
Team Fortress Classic (1999)   (Misc. Development)
Half-Life (1998)   (The Half-Life Team)

Developer Biography

Yahn Bernier is currently a Software Development Engineer with Valve.

Yahn was an Atlanta patent lawyer with a degree in chemistry from Harvard. So obviously he ended up in Seattle developing computer games. He taught himself to program at the age of 12 and, more recently, developed what we at Valve have called "that other level editor," BSP. Now that he's getting paid to make games, he figures he'll practice law in his spare time (little does he know). Yahn worked on Half-Life's multiplayer code and is currently hard at work on Team Fortress 2. His favorite phrase, when imbibing too freely, is "Yucca will assimilate you."

Last updated: Jul 16, 2003

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