(n., v.) The kind of gamer, who constantly compares in-game Achievements, and Gamerscore (see x-box live). Often willing to buy Movie games, and play through games marketed for children, just to increase Achievements. (see also: Achievement Whore).
Bill Gates is such an Achievement Gamer, he has every Achievement and some that aren't even on the list!
by Sheriffknight June 06, 2010
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