10 Difficult Xbox Achievements That Are Not Worth It

5. Final Fantasy XI – Any Of The Class Levelling Achievements

Getting up to level 75 shouldn't be that big a deal in a normal game, but Final Fantasy XI made it a truly demonic task indeed. Most of the game's achievements revolved around getting one of the game's many classes up to level 75, but doing so with even one class would take up to six months of solid play for at least eight hours a day. The amount of grinding required just isn't worth the measly Gamerscore on offer for these behemoth tasks.