Unreal Tournament III
48 Achievements
PS3
Unreal!
Collect all other trophies.
2.4%
How to unlock the Unreal! achievement in Unreal Tournament III - Definitive Guide
Self explanatory. Once you earn all other trophies you earn this nice and grindy platinum (it also happens to be the only trophy in the game that is a decent resolution). This is now unobtainable, unless you got Online Champion before the server shut down.