Definitions are always interesting! But I wouldn't be so quick to accept that definition since it's a fairly recently established term and any official definitions it might have are still somewhat arbitrary and likely formulated by people with no real insight themselves. To me, the disambiguation page on Wikipedia seems far more relevant:
Quote:
- Role-playing games, games in which the participants assume the roles of fictional characters.
- Role-playing game (video games), video games which incorporate settings and game mechanics found in role-playing games.
