Where's My Cow?
Terry Pratchett
Discworld (34.50)
Souls of Darkness
Gary Butterfield
For Us, the Living: A Comedy of Customs
Robert A. Heinlein
Simply the Best
Matt Bradley
Uncertainty in Games
Greg Costikyan
Playful Thinking (1)
Achievement Relocked: Loss Aversion and Game Design
Geoffrey Engelstein
Works of Game: On the Aesthetics of Games and Art
John Sharp
Play Matters
Miguel Sicart