Prize Winner Achievement
You get this achievement when you receive 10 Game Trophies (Badges).
Over time, you may eventually collect 10 badges, but not many people on the site use this feature. The easier way is to play a friend and have them send you 10 badges.
To do this, have your friend follow the steps in my blog on Giving Trophies
You can see what trophies you have already received in Home Menu -> Awards -> Badges