"The Gamerscore is a measure that corresponds to the number of "Achievement" points accumulated by an Xbox Live user. These Achievement points are awarded for the completion of game-specific challenges, such as beating a level or amassing a specified number of wins against other players in Xbox Live matches. Initially, retail Xbox 360 games offered up to 1000 points spread over a variable number of Achievements, while each Xbox Live Arcade title contained 12 achievements totalling 200 points. These possible totals per game have been raised to 1250 and 250, respectively; see below. Achievements surprisingly became a very potent system seller for the console . There was even a minor outcry when GameSpot published an article on how to achieve 6,000 easy Achievement points due to the lax nature that some 360 titles had on Achievements, notably EA Sports and 2K Sports titles, that would require almost no effort from the gamer to get the maximum 1,000 Achievement points. It must be noted that the following year's sports titles (2K Sports' 2K7 and EA Sports' 07 titles) featured far more challenging Achievements."
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