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Ken Birdwell

Game Credits


Half-Life (1998)   (Artificial Intelligence)


Half-Life (1998)   (Skeletal Animation)


The Anacrusis (2022)   (Special Thanks)


Dota: Underlords (2019)   (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: 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)
Half-Life (1998)   (The Half-Life Team)

Developer Biography

Ken Birdwell is the Senior Software Development Engineer at Valve.

Ken has contributed to a wide range of projects in the last 15 years. These include in-circuit emulators (CodeTap), 3D surface reconstruction (Surfgen), 3D prosthetics design tools (Shapemaker), and satellite networking (Microsoft's Broadcast PC). He also wrote one of the first graphical shells for multiplayer online games for Compuserve's Sniper.

Oddly enough, Ken has a BFA from Evergreen State University, where he studied painting, photography, and animation. Ken designed and implemented the skeletal animation system and many other engine components for Half-Life.

Last updated: Jul 16, 2003

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