TITLE
The Cabal: Valve’s Design Process For Creating Half-Life
AUTHOR
Ken Birdwell
PUBLICATION
Game Developer
YEAR
1999
TITLE
The Cabal: Valve’s Design Process For Creating Half-Life
AUTHOR
Ken Birdwell
PUBLICATION
Game Developer
YEAR
1999
TITLE
Genesis: How the Home Video Games Industry Began
AUTHOR
Ralph Baer
PUBLICATION
RalphBaer.com
YEAR
1999