GDC 2009
From COUNTER-STRIKE to LEFT 4 DEAD: Creating Replayable Cooperative Expe...
by Michael Booth
(Valve)
Game Design
GDC 2009
G.A.N.G Demo Derby - Sound Design
by Paul Lipson
(The Game Audio Network Guild)
Audio
GDC 2009
Helping Your Players Feel Smart: Puzzles as User Interface
by Randy Smith
(Tiger Style)
Game Design
GDC 2009
Valve's Approach to Playtesting: the Application of Empiricism
by Mike Ambinder
(Valve)
Game Design