Kelly Bailey

Game Credits


Half-Life: Opposing Force (1999)   (VALVE is)


AllegroHack (2000)   (Additional tiles)


Half-Life (1998)   (Composer)


Undead Knights (2009)   (Editors)

Creative Services

Half-Life: Game of the Year Edition (1999)   (Valve)


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)   (Credits)
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 is...)
Half-Life (1998)   (The Half-Life Team)

Developer Biography

Kelly Bailey was a Senior Game Designer of sound and music with Valve Corporation. He did all of the music and sound effects for Half-Life and wrote sound code to create character speech and DSP reverb effects. He did the same for Half-Life 2 and the two expansions. He is however best known for having lent his face for the CG model of the series' protagonist Gordon Freeman. In March 2011 it was confirmed he left the company.

Last updated: Mar 18, 2011