"All different kinds of arguments have been made both for and against global in-game merit systems (i.e. Xbox's Achievements or PS3's Trophies). I don't think they will go away anytime soon and, personally, I sorta like them, but, their continued success all boils down to their design quality. Some of them are both fun and interesting and others are just plain stupid. A few enthusiast have taken it upon themselves to write-up a few guidelines for designing better..."