obsession

I've been reading a number of articles recently concerning games, their reward systems, and addictive behavior. Some talk about classics like Everquest (Evercrack) or somewhat more recent games like World of Warcraft. Others discuss Facebook games like Farmville and Mafia Wars. Today, I read an article by a game developer about extrinsic vs. intrinsic rewards in a game, and how putting in quests in their game nearly ruined it.