Gaining new experience levels Skill points Mutagens Which skills you should buy? How to reset skills? How to earn money? How to quickly gain experience? How to kill the griffin? Where to exchange coins? Where can I sell trophies? Where can I get basic horse equipment? Introduction Mod installation step-by-step. Nexus Mod Manager is an intuitive tool that works with many popular games. All logos and images are copyrighted by their respective owners. This is why one should make a backup copy of the save files. One should remember that any interference with the game's files - like installing a mod - might result in the corruption of either the save files or even the entire game. The first method might be faster and does not require you to install any additional pieces of software, however, when using Nexus Mod Manager all the modifications are sorted by categories and it is easier to manage them. There are two possible ways of installing the modifications for The Witcher 3: Wild Hunt - you can do it either manually or using a tool called Nexus Mod Manager.