Fallen Earth are powerful abilities that can be learned at level 45. In the literal sense. a capstone is the final stone placed in the top of a wall. In the figurative sense, it is an important achievement. Either way, it is a final step; something that will be realized at the end. Well, now that the level cap is 50, capstones aren't max level abilities anymore. If our level progression continues to 150 (as was the original plan), eventually we will be able to achieve about half of the capstone abilities without even trying. So, let's enjoy them while they aren't a dime-a-dozen, shall we?
After the cut I'll give a brief summary of each capstone and its requirements. It's important to know what each capstone does before building a character, as some builds will benefit greatly from certain capstones. In many cases, Fallen Earth's capstones are goals for certain builds, and the theme of the build works hand-in-hand with its capstone.