These tools allow you to make your own addon cars, tracks and gamemodes for Cross Racing Championship.
PACKAGE CONTENTS
Plugins for 3ds max (Invictus shader, SCX export v4)
Scripts for 3ds max (SPL tools, pos/rotation tools, etc.)
Tutorials
Example gamemode sources
Example map
Resconvert for making .rpk files
Documentation files
These tools are provided as is, there's no official support for them. You need to have Cross Racing Championship Extreme in your Steam library for using the tools.