GamesRadar - How good are you at games? Really? In recent years a number of sites have attempted to find out, by trying to gauge the rarity of individual PlayStation Trophies. Although this made for interesting reading, their stats could only be calculated against the site’s own user base so was not representative of gamer skill or dedication as a whole. That all changed with the arrival of PS4 as Sony updated Trophies to display a system-wide rarity rating.