denisolenison/The-Leveling-Tree

Create your own tree (or non-tree) of prestige upgrades!

The-Modding-Tree

A modified version of The Prestige Tree that is much easier to mod. It still requires programming knowledge, but it's mostly pretty easy things and copy/pasting.

Look here for a tutorial on getting started with modding with TMT

You can look in the documentation for more information on how it all works, or look at the code in layers.js to see what it all looks like.