Kart Builder - A Dr. Robotnik's Ring Racers Modding Tool

This is a game modding tool for Dr. Robotnik’s Ring Racers that lets you develop kart mods in a layer-based format and directly export them into pk3 add-ons. Most everyone draws in Aseprite then pastes the results into a Kart Maker sprite sheet so I figured why not cut out the middle man!

Even if you’re not interested in the game, this extension can be a good reference point for how to structure larger tools, work with binary data and invoke child processes. It heavily leverages 7-Zip and directly exports to the DOOM picture format.