What characteristics of the gamers' profile should be taken into account in player-centred game design?

In this paper, we introduce the theory of trait Emotional Intelligence ('trait EI') as a personality theory that could assist in exemplifying the gamers' profile and contribute to the design of player-center game experiences. Data from two studies (a game-specific and a game-general one) led to a number of player-centered playability principles that could inform the design of adaptable games and games targeting specific gaming audiences. The gamers' emotional characteristics were found to be of prominent importance to the design of good games