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Gamerscores reflect the total number of achievement points that have been acquired by each individual Xbox 360 user. Hidden within many of the achievement names are sometimes obvious but sometimes subtle sexual innuendos. Game publishers will have the option to deliver another 250 incremental Gamerscore on top of the 1,000 via add-on content from Marketplace. This add-on content could be either free or paid. Games with more and varied Achievements sell better.