6. Achievements
As mentioned in WhatCulture's list of some of the
greatest achievements of all time, Borderlands has some pretty fun achievements attached to it. It's also walking the fine line between feeling both achievable and extremely tough to unlock them all. Even some of the more fun points - killing an enemy by jumping on its head, for example - can be surprisingly difficult to unlock, but the DLC comes with an absolute barrage of achievements and the sheer amount of them will keep you playing for a long, long time.