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US08469805B2 Tiered achievement system 有权
分层成就体系

Tiered achievement system
摘要:
A game console has the capability to execute programming to unlock an achievement. After the achievements are unlocked, a data store accessible by the game console over a network stores the information in the profile of the user. The achievements associated with the user profiles can be retrieved from the store along with an indicator, that is indicative of a tier level associated with the achievement where the tier indicates a certain performance level associated with unlocking a particular achievement.
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