Xbox’s Mythic Achievements are here and they’re just like PlayStation Platinum trophies. Microsoft is officially announcing its new Xbox Mythic Achievements today, and they're already available for Xbox Insiders to test. Mythic Achievements work a lot like Sony's PlayStation Platinum trophies and are unlocked once you've earned every original achievement for a game. "Mythic Achievements have already been added to eligible games you completed in the past, […].