It is an unofficial app that is created to help players of The Witcher 3: Wild Hunt to resolve some of the bugs that they encounter. This is an application for PC games that edit the script files in order to make them compatible with each other. There are three categories of changes and there are many of them. There are some of them that are easy to fix and some that are more difficult.

The easiest ones are the ones that are related to the combat. There is a problem with the enemy upscaling and this is resolved by editing the corresponding script file.