recomand articolul Xbox Live's Major Nelson � Xbox One Achievements :
In addition to Gamerscore, which will remain as a critical part of the Xbox gaming experience (and yes, your Gamerscore from Xbox 360 will carry forward to Xbox One – there’s only ONE Gamerscore (see what I did there?)), consumers can now unlock digital artwork, new maps, unlockable characters, and temporary stat boosts via achievements. And this is not limited to games! Other Xbox One applications such as video and music apps can now use Achievements to bring you awesome sneak peek content, early access, or subscription extensions. Only games will give you Gamerscore