Wikipedia
Powergaming
Powergaming (or power gaming) is a style of interacting with games or game-like systems, particularly video games, boardgames, and role-playing games, with the aim of maximising progress towards a specific goal, to the exclusion of other considerations such as storytelling, atmosphere and camaraderie. Due to its focus on the letter of the rules over the spirit of the rules, it is often seen as unsporting, un-fun, or unsociable. This behaviour is most often found in games with a wide range of game features, lengthy campaigns or prize tournaments such as massively multiplayer or collectible games.