This document discusses Richard Bartle's Audience Segmentation model for classifying players of different games into four categories: Achievers, Explorers, Socializers, and Killers. It then lists popular games and asks the reader to indicate which player type each game would likely appeal to based on the goals of each type - Achievers seek scores and possessions, Explorers seek discovery, Socializers seek social interaction, and Killers seek competition and dominance.