fuzzlewump
Explorer
The definition in the OP is too exclusive, but D&D still fits it in my opinion:
Winning in D&D is beating the monsters, losing is dying to the monsters. Before the technical definitions of 'winning' and 'losing' start flying, players have an innate incentive to beat the monsters, and try to avoid dying to the monsters. This incentive is similar to the one of wanting to win at rock-paper-scissors or really any game, especially one without external reward. The ability to continue fighting monsters after winning or to make a new character after losing is the same thing as saying "Want to play again?" after the first round of Go Fish or rock-paper-scissors. You still won or lost, you just 'play again.'
On top of that base game of D&D, numbers vs. numbers decided by dice, of course is all the fluff, but still a game at its heart even by your definition.
Winning in D&D is beating the monsters, losing is dying to the monsters. Before the technical definitions of 'winning' and 'losing' start flying, players have an innate incentive to beat the monsters, and try to avoid dying to the monsters. This incentive is similar to the one of wanting to win at rock-paper-scissors or really any game, especially one without external reward. The ability to continue fighting monsters after winning or to make a new character after losing is the same thing as saying "Want to play again?" after the first round of Go Fish or rock-paper-scissors. You still won or lost, you just 'play again.'
On top of that base game of D&D, numbers vs. numbers decided by dice, of course is all the fluff, but still a game at its heart even by your definition.