Chris Bateman @ Gamasutra: "What could we learn by examining the time penalties a game uses to punish its players?
Last year, I looked at the idea of reconsidering the usual split between "hardcore" and "casual" players in terms of a preference for punishing or forgiving games.
One way of exploring this notion of punishing games (versus forgiving games) is in terms of the time penalties that are implied by specific outcomes. In a forgiving game, the losses to the player for a mistake are usually minimal. In a punishing game, the player is risking their accrued progress for making a mistake – thus (provided the player is open to this style of play) increasing the excitement by adding risks to the play."